156922145955 has 48 divisors (see below), whose sum is σ = 272926817280. Its totient is φ = 83406625344.

The previous prime is 156922145929. The next prime is 156922145957. The reversal of 156922145955 is 559541229651.

156922145955 is a `hidden beast` number, since 1 + 56 + 92 + 2 + 1 + 459 + 55 = 666.

It is a Cunningham number, because it is equal to 396134²-1.

It is not a de Polignac number, because 156922145955 - 2¹⁰ = 156922144931 is a prime.

It is a super-2 number, since 2×156922145955² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (156922145957) 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 47 ways as a sum of consecutive naturals, for example, 17821584 + ... + 17830386.

It is an arithmetic number, because the mean of its divisors is an integer number (5685975360).

Almost surely, 2^156922145955 is an apocalyptic number.

156922145955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

156922145955 is a deficient number, since it is larger than the sum of its proper divisors (116004671325).

156922145955 is a wasteful number, since it uses less digits than its factorization.

156922145955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10120 (or 10117 counting only the distinct ones).

The product of its digits is 4860000, while the sum is 54.

The spelling of 156922145955 in words is "one hundred fifty-six billion, nine hundred twenty-two million, one hundred forty-five thousand, nine hundred fifty-five".