155628469312996 has 9 divisors (see below), whose sum is σ = 272349864960649. Its totient is φ = 77814222181384.

The previous prime is 155628469312961. The next prime is 155628469313027. The reversal of 155628469312996 is 699213964826551.

The square root of 155628469312996 is 12475114.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 151422130836900 + 4206338476096 = 12305370^2 + 2050936^2 .

It is a super-2 number, since 2×155628469312996² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 21831450 + ... + 28069006.

Almost surely, 2^{155628469312996} is an apocalyptic number.

155628469312996 is the 12475114-th square number.

It is an amenable number.

155628469312996 is a deficient number, since it is larger than the sum of its proper divisors (116721395647653).

155628469312996 is an frugal number, since it uses more digits than its factorization.

155628469312996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12475118 (or 6237559 counting only the distinct ones).

The product of its digits is 1511654400, while the sum is 76.

The spelling of 155628469312996 in words is "one hundred fifty-five trillion, six hundred twenty-eight billion, four hundred sixty-nine million, three hundred twelve thousand, nine hundred ninety-six".