20065977252 has 72 divisors (see below), whose sum is σ = 50969580480. Its totient is φ = 6656128320.

The previous prime is 20065977241. The next prime is 20065977299. The reversal of 20065977252 is 25277956002.

20065977252 is a `hidden beast` number, since 2 + 0 + 0 + 6 + 597 + 7 + 2 + 52 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 20065977198 and 20065977207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13279177 + ... + 13280687.

It is an arithmetic number, because the mean of its divisors is an integer number (707910840).

Almost surely, 2^20065977252 is an apocalyptic number.

It is an amenable number.

20065977252 is an abundant number, since it is smaller than the sum of its proper divisors (30903603228).

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

20065977252 is a wasteful number, since it uses less digits than its factorization.

20065977252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3073 (or 3068 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 20065977252 in words is "twenty billion, sixty-five million, nine hundred seventy-seven thousand, two hundred fifty-two".