156242561330 has 16 divisors (see below), whose sum is σ = 281275283160. Its totient is φ = 62488430592.

The previous prime is 156242561329. The next prime is 156242561347. The reversal of 156242561330 is 33165242651.

It can be written as a sum of positive squares in 4 ways, for example, as 115763938081 + 40478623249 = 340241^2 + 201193^2 .

It is a super-2 number, since 2×156242561330² (a number of 23 digits) 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 7 ways as a sum of consecutive naturals, for example, 997625 + ... + 1143564.

Almost surely, 2^156242561330 is an apocalyptic number.

156242561330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

156242561330 is a deficient number, since it is larger than the sum of its proper divisors (125032721830).

156242561330 is a wasteful number, since it uses less digits than its factorization.

156242561330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148493.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 156242561330 in words is "one hundred fifty-six billion, two hundred forty-two million, five hundred sixty-one thousand, three hundred thirty".