156552660 has 144 divisors (see below), whose sum is σ = 548638272. Its totient is φ = 35712000.

The previous prime is 156552659. The next prime is 156552673. The reversal of 156552660 is 66255651.

It is a happy number.

156552660 is a `hidden beast` number, since 15 + 65 + 526 + 60 = 666.

156552660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31335 + ... + 35985.

It is an arithmetic number, because the mean of its divisors is an integer number (3809988).

Almost surely, 2^156552660 is an apocalyptic number.

156552660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156552660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274319136).

156552660 is an abundant number, since it is smaller than the sum of its proper divisors (392085612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156552660 is a wasteful number, since it uses less digits than its factorization.

156552660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4694 (or 4689 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 156552660 is about 12512.1005430743. The cubic root of 156552660 is about 538.9562141807.

The spelling of 156552660 in words is "one hundred fifty-six million, five hundred fifty-two thousand, six hundred sixty".