315511626232551 has 16 divisors (see below), whose sum is σ = 485539815195648. Its totient is φ = 178507284996000.

The previous prime is 315511626232487. The next prime is 315511626232601. The reversal of 315511626232551 is 155232626115513.

It is not a de Polignac number, because 315511626232551 - 2⁶ = 315511626232487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315511626232551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315511626232051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74378033295 + ... + 74378037536.

It is an arithmetic number, because the mean of its divisors is an integer number (30346238449728).

Almost surely, 2^{315511626232551} is an apocalyptic number.

315511626232551 is a deficient number, since it is larger than the sum of its proper divisors (170028188963097).

315511626232551 is a wasteful number, since it uses less digits than its factorization.

315511626232551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148756070942.

The product of its digits is 1620000, while the sum is 48.

The spelling of 315511626232551 in words is "three hundred fifteen trillion, five hundred eleven billion, six hundred twenty-six million, two hundred thirty-two thousand, five hundred fifty-one".