15808235228940 has 144 divisors (see below), whose sum is σ = 55603181281536. Its totient is φ = 3284828088960.

The previous prime is 15808235228927. The next prime is 15808235229001. The reversal of 15808235228940 is 4982253280851.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 155480814 + ... + 155582453.

It is an arithmetic number, because the mean of its divisors is an integer number (386133203344).

Almost surely, 2^{15808235228940} is an apocalyptic number.

15808235228940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15808235228940 is an abundant number, since it is smaller than the sum of its proper divisors (39794946052596).

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

15808235228940 is a wasteful number, since it uses less digits than its factorization.

15808235228940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311063308 (or 311063295 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 57.

The spelling of 15808235228940 in words is "fifteen trillion, eight hundred eight billion, two hundred thirty-five million, two hundred twenty-eight thousand, nine hundred forty".