155094992621056 has 20 divisors (see below), whose sum is σ = 309887065335672. Its totient is φ = 77547496310272.

The previous prime is 155094992621033. The next prime is 155094992621057. The reversal of 155094992621056 is 650126299490551.

It is a super-2 number, since 2×155094992621056² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155094992621057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151459953220 + ... + 151459954243.

Almost surely, 2^{155094992621056} is an apocalyptic number.

155094992621056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155094992621056 is a deficient number, since it is larger than the sum of its proper divisors (154792072714616).

155094992621056 is an frugal number, since it uses more digits than its factorization.

155094992621056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302919907481 (or 302919907465 counting only the distinct ones).

The product of its (nonzero) digits is 52488000, while the sum is 64.

The spelling of 155094992621056 in words is "one hundred fifty-five trillion, ninety-four billion, nine hundred ninety-two million, six hundred twenty-one thousand, fifty-six".