20604760263 has 16 divisors (see below), whose sum is σ = 30660053760. Its totient is φ = 13675989528.

The previous prime is 20604760249. The next prime is 20604760303. The reversal of 20604760263 is 36206740602.

It is a happy number.

20604760263 is a `hidden beast` number, since 2 + 0 + 6 + 0 + 47 + 602 + 6 + 3 = 666.

It is not a de Polignac number, because 20604760263 - 2¹⁰ = 20604759239 is a prime.

It is a super-2 number, since 2×20604760263² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20604760213) 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, 1674795 + ... + 1687052.

It is an arithmetic number, because the mean of its divisors is an integer number (1916253360).

Almost surely, 2^20604760263 is an apocalyptic number.

20604760263 is a deficient number, since it is larger than the sum of its proper divisors (10055293497).

20604760263 is a wasteful number, since it uses less digits than its factorization.

20604760263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3362083 (or 3362077 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The spelling of 20604760263 in words is "twenty billion, six hundred four million, seven hundred sixty thousand, two hundred sixty-three".