13135604406551 has 16 divisors (see below), whose sum is σ = 14341739132448. Its totient is φ = 11931472051200.

The previous prime is 13135604406503. The next prime is 13135604406607. The reversal of 13135604406551 is 15560440653131.

It is a cyclic number.

It is not a de Polignac number, because 13135604406551 - 2⁶ = 13135604406487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13135604406451) 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, 63519461 + ... + 63725921.

It is an arithmetic number, because the mean of its divisors is an integer number (896358695778).

Almost surely, 2^{13135604406551} is an apocalyptic number.

13135604406551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13135604406551 is a deficient number, since it is larger than the sum of its proper divisors (1206134725897).

13135604406551 is a wasteful number, since it uses less digits than its factorization.

13135604406551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211282.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 13135604406551 in words is "thirteen trillion, one hundred thirty-five billion, six hundred four million, four hundred six thousand, five hundred fifty-one".