20523758776220 has 48 divisors (see below), whose sum is σ = 49258350348480. Its totient is φ = 7036527396864.

The previous prime is 20523758776133. The next prime is 20523758776253. The reversal of 20523758776220 is 2267785732502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3277862 + ... + 7196658.

It is an arithmetic number, because the mean of its divisors is an integer number (1026215632260).

Almost surely, 2^{20523758776220} is an apocalyptic number.

20523758776220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20523758776220 is an abundant number, since it is smaller than the sum of its proper divisors (28734591572260).

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

20523758776220 is a wasteful number, since it uses less digits than its factorization.

20523758776220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956222 (or 3956220 counting only the distinct ones).

The product of its (nonzero) digits is 19756800, while the sum is 56.

The spelling of 20523758776220 in words is "twenty trillion, five hundred twenty-three billion, seven hundred fifty-eight million, seven hundred seventy-six thousand, two hundred twenty".