20366723232 has 72 divisors (see below), whose sum is σ = 59786213760. Its totient is φ = 6569907840.

The previous prime is 20366723203. The next prime is 20366723291. The reversal of 20366723232 is 23232766302.

20366723232 is a `hidden beast` number, since 203 + 66 + 72 + 323 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1131682 + ... + 1149537.

It is an arithmetic number, because the mean of its divisors is an integer number (830364080).

Almost surely, 2^20366723232 is an apocalyptic number.

It is an amenable number.

20366723232 is an abundant number, since it is smaller than the sum of its proper divisors (39419490528).

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

20366723232 is a wasteful number, since it uses less digits than its factorization.

20366723232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281266 (or 2281255 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 36.

The spelling of 20366723232 in words is "twenty billion, three hundred sixty-six million, seven hundred twenty-three thousand, two hundred thirty-two".