20900460959 has 16 divisors (see below), whose sum is σ = 25569580800. Its totient is φ = 16684138944.

The previous prime is 20900460937. The next prime is 20900460961. The reversal of 20900460959 is 95906400902.

It is a de Polignac number, because none of the positive numbers 2^k-20900460959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20900466959) 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, 1323902 + ... + 1339595.

It is an arithmetic number, because the mean of its divisors is an integer number (1598098800).

Almost surely, 2^20900460959 is an apocalyptic number.

20900460959 is a deficient number, since it is larger than the sum of its proper divisors (4669119841).

20900460959 is a wasteful number, since it uses less digits than its factorization.

20900460959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663582.

The product of its (nonzero) digits is 174960, while the sum is 44.

The spelling of 20900460959 in words is "twenty billion, nine hundred million, four hundred sixty thousand, nine hundred fifty-nine".