20552102660 has 48 divisors (see below), whose sum is σ = 44425027584. Its totient is φ = 7982529408.

The previous prime is 20552102611. The next prime is 20552102777. The reversal of 20552102660 is 6620125502.

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, 33302 + ... + 205458.

It is an arithmetic number, because the mean of its divisors is an integer number (925521408).

Almost surely, 2^20552102660 is an apocalyptic number.

20552102660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20552102660 is an abundant number, since it is smaller than the sum of its proper divisors (23872924924).

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

20552102660 is a wasteful number, since it uses less digits than its factorization.

20552102660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172340 (or 172338 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 20552102660 in words is "twenty billion, five hundred fifty-two million, one hundred two thousand, six hundred sixty".