20576765433 has 16 divisors (see below), whose sum is σ = 31648112640. Its totient is φ = 11648261136.

The previous prime is 20576765401. The next prime is 20576765441. The reversal of 20576765433 is 33456767502.

It is not a de Polignac number, because 20576765433 - 2⁵ = 20576765401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20576761433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4576473 + ... + 4580966.

It is an arithmetic number, because the mean of its divisors is an integer number (1978007040).

Almost surely, 2^20576765433 is an apocalyptic number.

It is an amenable number.

20576765433 is a deficient number, since it is larger than the sum of its proper divisors (11071347207).

20576765433 is a wasteful number, since it uses less digits than its factorization.

20576765433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9157556.

The product of its (nonzero) digits is 3175200, while the sum is 48.

The spelling of 20576765433 in words is "twenty billion, five hundred seventy-six million, seven hundred sixty-five thousand, four hundred thirty-three".