156656472 has 64 divisors (see below), whose sum is σ = 449080320. Its totient is φ = 44610048.

The previous prime is 156656443. The next prime is 156656491. The reversal of 156656472 is 274656651.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55233 + ... + 57999.

It is an arithmetic number, because the mean of its divisors is an integer number (7016880).

Almost surely, 2^156656472 is an apocalyptic number.

156656472 is a gapful number since it is divisible by the number (12) 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 156656472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224540160).

156656472 is an abundant number, since it is smaller than the sum of its proper divisors (292423848).

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

156656472 is a wasteful number, since it uses less digits than its factorization.

156656472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120 (or 3116 counting only the distinct ones).

The product of its digits is 302400, while the sum is 42.

The square root of 156656472 is about 12516.2483196843. The cubic root of 156656472 is about 539.0753173630.

The spelling of 156656472 in words is "one hundred fifty-six million, six hundred fifty-six thousand, four hundred seventy-two".