13700155835021 has 4 divisors (see below), whose sum is σ = 13700213900700. Its totient is φ = 13700097769344.

The previous prime is 13700155834979. The next prime is 13700155835029. The reversal of 13700155835021 is 12053855100731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3691063233796 + 10009092601225 = 1921214^2 + 3163715^2 .

It is a cyclic number.

It is not a de Polignac number, because 13700155835021 - 2³⁴ = 13682975965837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13700155835021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13700155835029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28677476 + ... + 29151293.

It is an arithmetic number, because the mean of its divisors is an integer number (3425053475175).

Almost surely, 2^{13700155835021} is an apocalyptic number.

It is an amenable number.

13700155835021 is a deficient number, since it is larger than the sum of its proper divisors (58065679).

13700155835021 is an equidigital number, since it uses as much as digits as its factorization.

13700155835021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58065678.

The product of its (nonzero) digits is 126000, while the sum is 41.

The spelling of 13700155835021 in words is "thirteen trillion, seven hundred billion, one hundred fifty-five million, eight hundred thirty-five thousand, twenty-one".