20996416676 has 12 divisors (see below), whose sum is σ = 36747874380. Its totient is φ = 10497024000.

The previous prime is 20996416657. The next prime is 20996416681. The reversal of 20996416676 is 67661469902.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9510150400 + 11486266276 = 97520^2 + 107174^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255581 + ... + 327588.

It is an arithmetic number, because the mean of its divisors is an integer number (3062322865).

Almost surely, 2^20996416676 is an apocalyptic number.

It is an amenable number.

20996416676 is a deficient number, since it is larger than the sum of its proper divisors (15751457704).

20996416676 is a wasteful number, since it uses less digits than its factorization.

20996416676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592174 (or 592172 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 56.

The spelling of 20996416676 in words is "twenty billion, nine hundred ninety-six million, four hundred sixteen thousand, six hundred seventy-six".