13165503451 has 2 divisors, whose sum is σ = 13165503452. Its totient is φ = 13165503450.

The previous prime is 13165503431. The next prime is 13165503469. The reversal of 13165503451 is 15430556131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13165503451 is a prime.

It is a super-2 number, since 2×13165503451² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13165503401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6582751725 + 6582751726.

It is an arithmetic number, because the mean of its divisors is an integer number (6582751726).

Almost surely, 2^13165503451 is an apocalyptic number.

13165503451 is a deficient number, since it is larger than the sum of its proper divisors (1).

13165503451 is an equidigital number, since it uses as much as digits as its factorization.

13165503451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 13165503451 in words is "thirteen billion, one hundred sixty-five million, five hundred three thousand, four hundred fifty-one".