21155014160013 has 16 divisors (see below), whose sum is σ = 29180755094400. Its totient is φ = 13616355506880.

The previous prime is 21155014160009. The next prime is 21155014160017. The reversal of 21155014160013 is 31006141055112.

It is an interprime number because it is at equal distance from previous prime (21155014160009) and next prime (21155014160017).

It is not a de Polignac number, because 21155014160013 - 2² = 21155014160009 is a prime.

It is a super-2 number, since 2×21155014160013² (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 (21155014160017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4143873 + ... + 7712438.

It is an arithmetic number, because the mean of its divisors is an integer number (1823797193400).

Almost surely, 2^{21155014160013} is an apocalyptic number.

It is an amenable number.

21155014160013 is a deficient number, since it is larger than the sum of its proper divisors (8025740934387).

21155014160013 is a wasteful number, since it uses less digits than its factorization.

21155014160013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11876852.

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 21155014160013 in words is "twenty-one trillion, one hundred fifty-five billion, fourteen million, one hundred sixty thousand, thirteen".