10664105302521 has 24 divisors (see below), whose sum is σ = 17792517940704. Its totient is φ = 6082912114560.

The previous prime is 10664105302517. The next prime is 10664105302553. The reversal of 10664105302521 is 12520350146601.

10664105302521 is a `hidden beast` number, since 1 + 0 + 6 + 64 + 10 + 530 + 2 + 52 + 1 = 666.

It is not a de Polignac number, because 10664105302521 - 2² = 10664105302517 is a prime.

It is a super-2 number, since 2×10664105302521² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10664105302321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3168181711 + ... + 3168185076.

It is an arithmetic number, because the mean of its divisors is an integer number (741354914196).

Almost surely, 2^{10664105302521} is an apocalyptic number.

10664105302521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10664105302521 is a deficient number, since it is larger than the sum of its proper divisors (7128412638183).

10664105302521 is a wasteful number, since it uses less digits than its factorization.

10664105302521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6336366821 (or 6336366818 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 10664105302521 in words is "ten trillion, six hundred sixty-four billion, one hundred five million, three hundred two thousand, five hundred twenty-one".