20607777020 has 24 divisors (see below), whose sum is σ = 43288729344. Its totient is φ = 8240749376.

The previous prime is 20607777011. The next prime is 20607777053. The reversal of 20607777020 is 2077770602.

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, 75164 + ... + 216483.

It is an arithmetic number, because the mean of its divisors is an integer number (1803697056).

Almost surely, 2^20607777020 is an apocalyptic number.

20607777020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20607777020 is an abundant number, since it is smaller than the sum of its proper divisors (22680952324).

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

20607777020 is a wasteful number, since it uses less digits than its factorization.

20607777020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295189 (or 295187 counting only the distinct ones).

The product of its (nonzero) digits is 57624, while the sum is 38.

The spelling of 20607777020 in words is "twenty billion, six hundred seven million, seven hundred seventy-seven thousand, twenty".