20477063165 has 32 divisors (see below), whose sum is σ = 27685034496. Its totient is φ = 14438730240.

The previous prime is 20477063141. The next prime is 20477063207. The reversal of 20477063165 is 56136077402.

It is not a de Polignac number, because 20477063165 - 2¹⁰ = 20477062141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43514 + ... + 206996.

It is an arithmetic number, because the mean of its divisors is an integer number (865157328).

Almost surely, 2^20477063165 is an apocalyptic number.

It is an amenable number.

20477063165 is a deficient number, since it is larger than the sum of its proper divisors (7207971331).

20477063165 is a wasteful number, since it uses less digits than its factorization.

20477063165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163589.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 20477063165 in words is "twenty billion, four hundred seventy-seven million, sixty-three thousand, one hundred sixty-five".