10664323505 has 24 divisors (see below), whose sum is σ = 14124890472. Its totient is φ = 7723584000.

The previous prime is 10664323459. The next prime is 10664323517. The reversal of 10664323505 is 50532346601.

It can be written as a sum of positive squares in 4 ways, for example, as 3859888384 + 6804435121 = 62128^2 + 82489^2 .

It is not a de Polignac number, because 10664323505 - 2⁶ = 10664323441 is a prime.

It is a super-2 number, since 2×10664323505² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109235 + ... + 182375.

It is an arithmetic number, because the mean of its divisors is an integer number (588537103).

Almost surely, 2^10664323505 is an apocalyptic number.

It is an amenable number.

10664323505 is a deficient number, since it is larger than the sum of its proper divisors (3460566967).

10664323505 is a wasteful number, since it uses less digits than its factorization.

10664323505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73409 (or 73398 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 10664323505 in words is "ten billion, six hundred sixty-four million, three hundred twenty-three thousand, five hundred five".