10604645621 has 2 divisors, whose sum is σ = 10604645622. Its totient is φ = 10604645620.

The previous prime is 10604645561. The next prime is 10604645671. The reversal of 10604645621 is 12654640601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10087992721 + 516652900 = 100439^2 + 22730^2 .

It is an emirp because it is prime and its reverse (12654640601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10604645621 - 2²² = 10600451317 is a prime.

It is a super-2 number, since 2×10604645621² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10604645671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5302322810 + 5302322811.

It is an arithmetic number, because the mean of its divisors is an integer number (5302322811).

Almost surely, 2^10604645621 is an apocalyptic number.

It is an amenable number.

10604645621 is a deficient number, since it is larger than the sum of its proper divisors (1).

10604645621 is an equidigital number, since it uses as much as digits as its factorization.

10604645621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 10604645621 in words is "ten billion, six hundred four million, six hundred forty-five thousand, six hundred twenty-one".