20161140008 has 16 divisors (see below), whose sum is σ = 39791724000. Its totient is φ = 9550013616.

The previous prime is 20161139959. The next prime is 20161140019. The reversal of 20161140008 is 80004116102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66319388 + ... + 66319691.

It is an arithmetic number, because the mean of its divisors is an integer number (2486982750).

Almost surely, 2^20161140008 is an apocalyptic number.

It is an amenable number.

20161140008 is a deficient number, since it is larger than the sum of its proper divisors (19630583992).

20161140008 is a wasteful number, since it uses less digits than its factorization.

20161140008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132639104 (or 132639100 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The spelling of 20161140008 in words is "twenty billion, one hundred sixty-one million, one hundred forty thousand, eight".