20477337670 has 16 divisors (see below), whose sum is σ = 36861270768. Its totient is φ = 8190476640.

The previous prime is 20477337659. The next prime is 20477337691. The reversal of 20477337670 is 7673377402.

It is a self number, because there is not a number n which added to its sum of digits gives 20477337670.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 175240 + ... + 267700.

It is an arithmetic number, because the mean of its divisors is an integer number (2303829423).

Almost surely, 2^20477337670 is an apocalyptic number.

20477337670 is a deficient number, since it is larger than the sum of its proper divisors (16383933098).

20477337670 is a wasteful number, since it uses less digits than its factorization.

20477337670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114615.

The product of its (nonzero) digits is 1037232, while the sum is 46.

The spelling of 20477337670 in words is "twenty billion, four hundred seventy-seven million, three hundred thirty-seven thousand, six hundred seventy".