156344274369 has 12 divisors (see below), whose sum is σ = 227902460500. Its totient is φ = 103273281504.

The previous prime is 156344274349. The next prime is 156344274379. The reversal of 156344274369 is 963472443651.

156344274369 is a `hidden beast` number, since 1 + 5 + 6 + 3 + 4 + 4 + 274 + 369 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 103851507600 + 52492766769 = 322260^2 + 229113^2 .

It is not a de Polignac number, because 156344274369 - 2⁹ = 156344273857 is a prime.

It is a super-2 number, since 2×156344274369² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156344274319) 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 11 ways as a sum of consecutive naturals, for example, 79685194 + ... + 79687155.

Almost surely, 2^156344274369 is an apocalyptic number.

It is an amenable number.

156344274369 is a deficient number, since it is larger than the sum of its proper divisors (71558186131).

156344274369 is a wasteful number, since it uses less digits than its factorization.

156344274369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159372464 (or 159372461 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The spelling of 156344274369 in words is "one hundred fifty-six billion, three hundred forty-four million, two hundred seventy-four thousand, three hundred sixty-nine".