202155706013 has 2 divisors, whose sum is σ = 202155706014. Its totient is φ = 202155706012.

The previous prime is 202155706009. The next prime is 202155706033. The reversal of 202155706013 is 310607551202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160221676729 + 41934029284 = 400277^2 + 204778^2 .

It is a cyclic number.

It is not a de Polignac number, because 202155706013 - 2² = 202155706009 is a prime.

It is a super-2 number, since 2×202155706013² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202155706033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101077853006 + 101077853007.

It is an arithmetic number, because the mean of its divisors is an integer number (101077853007).

Almost surely, 2^202155706013 is an apocalyptic number.

It is an amenable number.

202155706013 is a deficient number, since it is larger than the sum of its proper divisors (1).

202155706013 is an equidigital number, since it uses as much as digits as its factorization.

202155706013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 32.

The spelling of 202155706013 in words is "two hundred two billion, one hundred fifty-five million, seven hundred six thousand, thirteen".