12516635510151 has 32 divisors (see below), whose sum is σ = 17081562839040. Its totient is φ = 8148857182464.

The previous prime is 12516635510147. The next prime is 12516635510201. The reversal of 12516635510151 is 15101553661521.

It is a happy number.

It is not a de Polignac number, because 12516635510151 - 2² = 12516635510147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12516635510651) by changing a digit.

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, 373960245 + ... + 373993713.

It is an arithmetic number, because the mean of its divisors is an integer number (533798838720).

Almost surely, 2^{12516635510151} is an apocalyptic number.

12516635510151 is a deficient number, since it is larger than the sum of its proper divisors (4564927328889).

12516635510151 is a wasteful number, since it uses less digits than its factorization.

12516635510151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39295.

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 12516635510151 in words is "twelve trillion, five hundred sixteen billion, six hundred thirty-five million, five hundred ten thousand, one hundred fifty-one".