15551150500065 has 32 divisors (see below), whose sum is σ = 25650191226240. Its totient is φ = 8041681506816.

The previous prime is 15551150500057. The next prime is 15551150500117. The reversal of 15551150500065 is 56000505115551.

It is not a de Polignac number, because 15551150500065 - 2³ = 15551150500057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15551150499996 and 15551150500032.

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, 120291022 + ... + 120420231.

It is an arithmetic number, because the mean of its divisors is an integer number (801568475820).

Almost surely, 2^{15551150500065} is an apocalyptic number.

15551150500065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15551150500065 is a deficient number, since it is larger than the sum of its proper divisors (10099040726175).

15551150500065 is a wasteful number, since it uses less digits than its factorization.

15551150500065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240711393.

The product of its (nonzero) digits is 93750, while the sum is 39.

The spelling of 15551150500065 in words is "fifteen trillion, five hundred fifty-one billion, one hundred fifty million, five hundred thousand, sixty-five".