20181514008 has 64 divisors (see below), whose sum is σ = 51310771200. Its totient is φ = 6613505280.

The previous prime is 20181513991. The next prime is 20181514019. The reversal of 20181514008 is 80041518102.

It is a happy number.

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, 526353 + ... + 563391.

It is an arithmetic number, because the mean of its divisors is an integer number (801730800).

Almost surely, 2^20181514008 is an apocalyptic number.

It is an amenable number.

20181514008 is an abundant number, since it is smaller than the sum of its proper divisors (31129257192).

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

20181514008 is a wasteful number, since it uses less digits than its factorization.

20181514008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37432 (or 37428 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 30.

The spelling of 20181514008 in words is "twenty billion, one hundred eighty-one million, five hundred fourteen thousand, eight".