156221160 has 64 divisors (see below), whose sum is σ = 496238400. Its totient is φ = 39207936.

The previous prime is 156221159. The next prime is 156221161. The reversal of 156221160 is 61122651.

It is an interprime number because it is at equal distance from previous prime (156221159) and next prime (156221161).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 156221160.

It is not an unprimeable number, because it can be changed into a prime (156221161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36250 + ... + 40329.

It is an arithmetic number, because the mean of its divisors is an integer number (7753725).

Almost surely, 2^156221160 is an apocalyptic number.

156221160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156221160 is an abundant number, since it is smaller than the sum of its proper divisors (340017240).

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

156221160 is a wasteful number, since it uses less digits than its factorization.

156221160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76610 (or 76606 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 156221160 is about 12498.8463467634. The cubic root of 156221160 is about 538.5755323908.

It can be divided in two parts, 1562 and 21160, that added together give a palindrome (22722).

The spelling of 156221160 in words is "one hundred fifty-six million, two hundred twenty-one thousand, one hundred sixty".