10136644045021 has 4 divisors (see below), whose sum is σ = 10916385894652. Its totient is φ = 9356902195392.

The previous prime is 10136644044931. The next prime is 10136644045049. The reversal of 10136644045021 is 12054044663101.

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 4040120100025 + 6096523944996 = 2010005^2 + 2469114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10136644045021 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 (10136644045421) 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, 389870924796 + ... + 389870924821.

It is an arithmetic number, because the mean of its divisors is an integer number (2729096473663).

Almost surely, 2^{10136644045021} is an apocalyptic number.

It is an amenable number.

10136644045021 is a deficient number, since it is larger than the sum of its proper divisors (779741849631).

10136644045021 is an equidigital number, since it uses as much as digits as its factorization.

10136644045021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779741849630.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 10136644045021 in words is "ten trillion, one hundred thirty-six billion, six hundred forty-four million, forty-five thousand, twenty-one".