156540326634 has 48 divisors (see below), whose sum is σ = 354738818304. Its totient is φ = 49795548000.

The previous prime is 156540326629. The next prime is 156540326647. The reversal of 156540326634 is 436623045651.

156540326634 is a `hidden beast` number, since 1 + 5 + 6 + 5 + 4 + 0 + 3 + 2 + 6 + 634 = 666.

156540326634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 156540326634.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 260217 + ... + 617084.

It is an arithmetic number, because the mean of its divisors is an integer number (7390392048).

Almost surely, 2^156540326634 is an apocalyptic number.

156540326634 is an abundant number, since it is smaller than the sum of its proper divisors (198198491670).

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

156540326634 is a wasteful number, since it uses less digits than its factorization.

156540326634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877763 (or 877760 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

The spelling of 156540326634 in words is "one hundred fifty-six billion, five hundred forty million, three hundred twenty-six thousand, six hundred thirty-four".