20165326650 has 120 divisors (see below), whose sum is σ = 64034071200. Its totient is φ = 4609211040.

The previous prime is 20165326631. The next prime is 20165326661. The reversal of 20165326650 is 5662356102.

It is a happy number.

20165326650 is a `hidden beast` number, since 2 + 0 + 16 + 532 + 66 + 50 = 666.

20165326650 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 327300 + ... + 383999.

It is an arithmetic number, because the mean of its divisors is an integer number (533617260).

Almost surely, 2^20165326650 is an apocalyptic number.

20165326650 is an abundant number, since it is smaller than the sum of its proper divisors (43868744550).

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

20165326650 is a wasteful number, since it uses less digits than its factorization.

20165326650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711330 (or 711316 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 20165326650 in words is "twenty billion, one hundred sixty-five million, three hundred twenty-six thousand, six hundred fifty".