13051166657551 has 16 divisors (see below), whose sum is σ = 14242118758560. Its totient is φ = 11860962347520.

The previous prime is 13051166657539. The next prime is 13051166657561. The reversal of 13051166657551 is 15575666115031.

It is not a de Polignac number, because 13051166657551 - 2²⁹ = 13050629786639 is a prime.

It is a super-2 number, since 2×13051166657551² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13051166657531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615813811 + ... + 615835003.

It is an arithmetic number, because the mean of its divisors is an integer number (890132422410).

Almost surely, 2^{13051166657551} is an apocalyptic number.

13051166657551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13051166657551 is a deficient number, since it is larger than the sum of its proper divisors (1190952101009).

13051166657551 is a wasteful number, since it uses less digits than its factorization.

13051166657551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36186.

The product of its (nonzero) digits is 2835000, while the sum is 52.

The spelling of 13051166657551 in words is "thirteen trillion, fifty-one billion, one hundred sixty-six million, six hundred fifty-seven thousand, five hundred fifty-one".