45656180681 has 2 divisors, whose sum is σ = 45656180682. Its totient is φ = 45656180680.

The previous prime is 45656180657. The next prime is 45656180683. The reversal of 45656180681 is 18608165654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44975805625 + 680375056 = 212075^2 + 26084^2 .

It is a cyclic number.

It is not a de Polignac number, because 45656180681 - 2²⁶ = 45589071817 is a prime.

It is a super-2 number, since 2×45656180681² (a number of 22 digits) contains 22 as substring.

Together with 45656180683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45656180683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22828090340 + 22828090341.

It is an arithmetic number, because the mean of its divisors is an integer number (22828090341).

Almost surely, 2^45656180681 is an apocalyptic number.

It is an amenable number.

45656180681 is a deficient number, since it is larger than the sum of its proper divisors (1).

45656180681 is an equidigital number, since it uses as much as digits as its factorization.

45656180681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 45656180681 in words is "forty-five billion, six hundred fifty-six million, one hundred eighty thousand, six hundred eighty-one".