10645814021 has 2 divisors, whose sum is σ = 10645814022. Its totient is φ = 10645814020.

The previous prime is 10645814009. The next prime is 10645814033. The reversal of 10645814021 is 12041854601.

It is a balanced prime because it is at equal distance from previous prime (10645814009) and next prime (10645814033).

It can be written as a sum of positive squares in only one way, i.e., 9257133796 + 1388680225 = 96214^2 + 37265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10645814021 is a prime.

It is a super-2 number, since 2×10645814021² (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 (10645814521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5322907010 + 5322907011.

It is an arithmetic number, because the mean of its divisors is an integer number (5322907011).

Almost surely, 2^10645814021 is an apocalyptic number.

It is an amenable number.

10645814021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10645814021 is an equidigital number, since it uses as much as digits as its factorization.

10645814021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 32.

The spelling of 10645814021 in words is "ten billion, six hundred forty-five million, eight hundred fourteen thousand, twenty-one".