20080945188 has 36 divisors (see below), whose sum is σ = 53431756560. Its totient is φ = 6341350896.

The previous prime is 20080945187. The next prime is 20080945189. The reversal of 20080945188 is 88154908002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20080945187) and next prime (20080945189).

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (20080945187) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14678370 + ... + 14679737.

It is an arithmetic number, because the mean of its divisors is an integer number (1484215460).

Almost surely, 2^20080945188 is an apocalyptic number.

It is an amenable number.

20080945188 is an abundant number, since it is smaller than the sum of its proper divisors (33350811372).

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

20080945188 is a wasteful number, since it uses less digits than its factorization.

20080945188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29358136 (or 29358131 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The spelling of 20080945188 in words is "twenty billion, eighty million, nine hundred forty-five thousand, one hundred eighty-eight".