20117150660 has 48 divisors (see below), whose sum is σ = 43133779584. Its totient is φ = 7879204608.

The previous prime is 20117150639. The next prime is 20117150663. The reversal of 20117150660 is 6605171102.

It is not an unprimeable number, because it can be changed into a prime (20117150663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178832 + ... + 268728.

It is an arithmetic number, because the mean of its divisors is an integer number (898620408).

Almost surely, 2^20117150660 is an apocalyptic number.

20117150660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20117150660 is an abundant number, since it is smaller than the sum of its proper divisors (23016628924).

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

20117150660 is a wasteful number, since it uses less digits than its factorization.

20117150660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90140 (or 90138 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The spelling of 20117150660 in words is "twenty billion, one hundred seventeen million, one hundred fifty thousand, six hundred sixty".