156660560 has 40 divisors (see below), whose sum is σ = 416270976. Its totient is φ = 53712000.

The previous prime is 156660547. The next prime is 156660563. The reversal of 156660560 is 65066651.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 156660560.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156660563) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 139316 + ... + 140435.

Almost surely, 2^156660560 is an apocalyptic number.

156660560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156660560 is an abundant number, since it is smaller than the sum of its proper divisors (259610416).

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

156660560 is a wasteful number, since it uses less digits than its factorization.

156660560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279771 (or 279765 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 156660560 is about 12516.4116263408. The cubic root of 156660560 is about 539.0800064356.

It can be divided in two parts, 1566 and 60560, that added together give a palindrome (62126).

The spelling of 156660560 in words is "one hundred fifty-six million, six hundred sixty thousand, five hundred sixty".