156682874234 has 4 divisors (see below), whose sum is σ = 235024311354. Its totient is φ = 78341437116.

The previous prime is 156682874233. The next prime is 156682874261. The reversal of 156682874234 is 432478286651.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 432478286651 = 103 ⋅4198818317.

It can be written as a sum of positive squares in only one way, i.e., 86290825009 + 70392049225 = 293753^2 + 265315^2 .

It is a super-2 number, since 2×156682874234² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 156682874234.

It is not an unprimeable number, because it can be changed into a prime (156682874233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39170718557 + ... + 39170718560.

Almost surely, 2^156682874234 is an apocalyptic number.

156682874234 is a deficient number, since it is larger than the sum of its proper divisors (78341437120).

156682874234 is an equidigital number, since it uses as much as digits as its factorization.

156682874234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78341437119.

The product of its digits is 15482880, while the sum is 56.

The spelling of 156682874234 in words is "one hundred fifty-six billion, six hundred eighty-two million, eight hundred seventy-four thousand, two hundred thirty-four".