15554050590985 has 16 divisors (see below), whose sum is σ = 19129074112512. Its totient is φ = 12134049724800.

The previous prime is 15554050590941. The next prime is 15554050591019. The reversal of 15554050590985 is 58909505045551.

It is not a de Polignac number, because 15554050590985 - 2³⁹ = 15004294777097 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 15 ways as a sum of consecutive naturals, for example, 17365449 + ... + 18239158.

It is an arithmetic number, because the mean of its divisors is an integer number (1195567132032).

Almost surely, 2^{15554050590985} is an apocalyptic number.

It is an amenable number.

15554050590985 is a deficient number, since it is larger than the sum of its proper divisors (3575023521527).

15554050590985 is a wasteful number, since it uses less digits than its factorization.

15554050590985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35606784.

The product of its (nonzero) digits is 40500000, while the sum is 61.

The spelling of 15554050590985 in words is "fifteen trillion, five hundred fifty-four billion, fifty million, five hundred ninety thousand, nine hundred eighty-five".