20133641764 has 24 divisors (see below), whose sum is σ = 37156918400. Its totient is φ = 9519340320.

The previous prime is 20133641741. The next prime is 20133641771. The reversal of 20133641764 is 46714633102.

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, 203724 + ... + 285955.

Almost surely, 2^20133641764 is an apocalyptic number.

It is an amenable number.

20133641764 is a deficient number, since it is larger than the sum of its proper divisors (17023276636).

20133641764 is a wasteful number, since it uses less digits than its factorization.

20133641764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490243 (or 490241 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 20133641764 in words is "twenty billion, one hundred thirty-three million, six hundred forty-one thousand, seven hundred sixty-four".