90368020155 has 32 divisors (see below), whose sum is σ = 165499905024. Its totient is φ = 41247213696.

The previous prime is 90368020129. The next prime is 90368020163. The reversal of 90368020155 is 55102086309.

It is not a de Polignac number, because 90368020155 - 2⁸ = 90368019899 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 597172 + ... + 733041.

It is an arithmetic number, because the mean of its divisors is an integer number (5171872032).

Almost surely, 2^90368020155 is an apocalyptic number.

90368020155 is a deficient number, since it is larger than the sum of its proper divisors (75131884869).

90368020155 is a wasteful number, since it uses less digits than its factorization.

90368020155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330875.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 90368020155 in words is "ninety billion, three hundred sixty-eight million, twenty thousand, one hundred fifty-five".