995953564681 has 2 divisors, whose sum is σ = 995953564682. Its totient is φ = 995953564680.

The previous prime is 995953564667. The next prime is 995953564691. The reversal of 995953564681 is 186465359599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 922358556025 + 73595008656 = 960395^2 + 271284^2 .

It is a cyclic number.

It is not a de Polignac number, because 995953564681 - 2⁹ = 995953564169 is a prime.

It is a super-2 number, since 2×995953564681² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 995953564681.

It is not a weakly prime, because it can be changed into another prime (995953564691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497976782340 + 497976782341.

It is an arithmetic number, because the mean of its divisors is an integer number (497976782341).

Almost surely, 2^995953564681 is an apocalyptic number.

It is an amenable number.

995953564681 is a deficient number, since it is larger than the sum of its proper divisors (1).

995953564681 is an equidigital number, since it uses as much as digits as its factorization.

995953564681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 314928000, while the sum is 70.

The spelling of 995953564681 in words is "nine hundred ninety-five billion, nine hundred fifty-three million, five hundred sixty-four thousand, six hundred eighty-one".