156023542540 has 12 divisors (see below), whose sum is σ = 327649439376. Its totient is φ = 62409417008.

The previous prime is 156023542457. The next prime is 156023542561. The reversal of 156023542540 is 45245320651.

It is a self number, because there is not a number n which added to its sum of digits gives 156023542540.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3900588544 + ... + 3900588583.

It is an arithmetic number, because the mean of its divisors is an integer number (27304119948).

Almost surely, 2^156023542540 is an apocalyptic number.

156023542540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156023542540 is an abundant number, since it is smaller than the sum of its proper divisors (171625896836).

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

156023542540 is a wasteful number, since it uses less digits than its factorization.

156023542540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7801177136 (or 7801177134 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 156023542540 in words is "one hundred fifty-six billion, twenty-three million, five hundred forty-two thousand, five hundred forty".