156343429520 has 20 divisors (see below), whose sum is σ = 363498473820. Its totient is φ = 62537371776.

The previous prime is 156343429511. The next prime is 156343429597. The reversal of 156343429520 is 25924343651.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 114395474176 + 41947955344 = 338224^2 + 204812^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 977146355 + ... + 977146514.

It is an arithmetic number, because the mean of its divisors is an integer number (18174923691).

Almost surely, 2^156343429520 is an apocalyptic number.

156343429520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156343429520 is an abundant number, since it is smaller than the sum of its proper divisors (207155044300).

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

156343429520 is a wasteful number, since it uses less digits than its factorization.

156343429520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954292882 (or 1954292876 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 156343429520 in words is "one hundred fifty-six billion, three hundred forty-three million, four hundred twenty-nine thousand, five hundred twenty".