13564665010 has 24 divisors (see below), whose sum is σ = 26439060420. Its totient is φ = 5008491072.

The previous prime is 13564664983. The next prime is 13564665073. The reversal of 13564665010 is 1056646531.

It can be written as a sum of positive squares in 6 ways, for example, as 4019179609 + 9545485401 = 63397^2 + 97701^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4011525 + ... + 4014904.

Almost surely, 2^13564665010 is an apocalyptic number.

13564665010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13564665010 is a deficient number, since it is larger than the sum of its proper divisors (12874395410).

13564665010 is a wasteful number, since it uses less digits than its factorization.

13564665010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8026462 (or 8026449 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 13564665010 in words is "thirteen billion, five hundred sixty-four million, six hundred sixty-five thousand, ten".