20132664 has 32 divisors (see below), whose sum is σ = 50482320. Its totient is φ = 6690816.

The previous prime is 20132639. The next prime is 20132683. The reversal of 20132664 is 46623102.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8472 + ... + 10584.

Almost surely, 2^20132664 is an apocalyptic number.

20132664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20132664 is an abundant number, since it is smaller than the sum of its proper divisors (30349656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20132664 is a wasteful number, since it uses less digits than its factorization.

20132664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519 (or 2515 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20132664 is about 4486.9437259676. The cubic root of 20132664 is about 272.0406153306.

Adding to 20132664 its reverse (46623102), we get a palindrome (66755766).

The spelling of 20132664 in words is "twenty million, one hundred thirty-two thousand, six hundred sixty-four".