20615496448 has 36 divisors (see below), whose sum is σ = 42026029920. Its totient is φ = 10088428544.

The previous prime is 20615496431. The next prime is 20615496491. The reversal of 20615496448 is 84469451602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 844663 + ... + 868726.

It is an arithmetic number, because the mean of its divisors is an integer number (1167389720).

Almost surely, 2^20615496448 is an apocalyptic number.

It is an amenable number.

20615496448 is an abundant number, since it is smaller than the sum of its proper divisors (21410533472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20615496448 is an equidigital number, since it uses as much as digits as its factorization.

20615496448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713452 (or 1713438 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 20615496448 in words is "twenty billion, six hundred fifteen million, four hundred ninety-six thousand, four hundred forty-eight".