20677054776 has 32 divisors (see below), whose sum is σ = 59077299840. Its totient is φ = 5907729888.

The previous prime is 20677054757. The next prime is 20677054787. The reversal of 20677054776 is 67745077602.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61538686 + ... + 61539021.

It is an arithmetic number, because the mean of its divisors is an integer number (1846165620).

Almost surely, 2^20677054776 is an apocalyptic number.

It is an amenable number.

20677054776 is an abundant number, since it is smaller than the sum of its proper divisors (38400245064).

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

20677054776 is a wasteful number, since it uses less digits than its factorization.

20677054776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123077723 (or 123077719 counting only the distinct ones).

The product of its (nonzero) digits is 3457440, while the sum is 51.

The spelling of 20677054776 in words is "twenty billion, six hundred seventy-seven million, fifty-four thousand, seven hundred seventy-six".