156144560 has 80 divisors (see below), whose sum is σ = 426535200. Its totient is φ = 52408320.

The previous prime is 156144559. The next prime is 156144587. The reversal of 156144560 is 65441651.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×156144560² = 48762247235187200, which contains 22 as substring.

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, 4616 + ... + 18264.

It is an arithmetic number, because the mean of its divisors is an integer number (5331690).

Almost surely, 2^156144560 is an apocalyptic number.

156144560 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 156144560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213267600).

156144560 is an abundant number, since it is smaller than the sum of its proper divisors (270390640).

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

156144560 is a wasteful number, since it uses less digits than its factorization.

156144560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13686 (or 13680 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 156144560 is about 12495.7816882338. The cubic root of 156144560 is about 538.4874913289.

The spelling of 156144560 in words is "one hundred fifty-six million, one hundred forty-four thousand, five hundred sixty".