16158784872 has 32 divisors (see below), whose sum is σ = 42153353280. Its totient is φ = 5152076160.

The previous prime is 16158784843. The next prime is 16158784969. The reversal of 16158784872 is 27848785161.

It is a super-2 number, since 2×16158784872² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14636029 + ... + 14637132.

It is an arithmetic number, because the mean of its divisors is an integer number (1317292290).

Almost surely, 2^16158784872 is an apocalyptic number.

16158784872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16158784872 is an abundant number, since it is smaller than the sum of its proper divisors (25994568408).

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

16158784872 is a wasteful number, since it uses less digits than its factorization.

16158784872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29273193 (or 29273189 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 57.

The spelling of 16158784872 in words is "sixteen billion, one hundred fifty-eight million, seven hundred eighty-four thousand, eight hundred seventy-two".