15151131999999 has 8 divisors (see below), whose sum is σ = 22446121481520. Its totient is φ = 10100754666648.

The previous prime is 15151131999989. The next prime is 15151132000001. The reversal of 15151131999999 is 99999913115151.

15151131999999 is a `hidden beast` number, since 1 + 5 + 1 + 511 + 3 + 19 + 9 + 9 + 9 + 99 = 666.

It is not a de Polignac number, because 15151131999999 - 2¹² = 15151131995903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15151131999979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280576518492 + ... + 280576518545.

It is an arithmetic number, because the mean of its divisors is an integer number (2805765185190).

Almost surely, 2^{15151131999999} is an apocalyptic number.

15151131999999 is a deficient number, since it is larger than the sum of its proper divisors (7294989481521).

15151131999999 is an equidigital number, since it uses as much as digits as its factorization.

15151131999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561153037046 (or 561153037040 counting only the distinct ones).

The product of its digits is 39858075, while the sum is 72.

The spelling of 15151131999999 in words is "fifteen trillion, one hundred fifty-one billion, one hundred thirty-one million, nine hundred ninety-nine thousand, nine hundred ninety-nine".