16931493936 has 160 divisors (see below), whose sum is σ = 55661358080. Its totient is φ = 4827216384.

The previous prime is 16931493923. The next prime is 16931493983. The reversal of 16931493936 is 63939413961.

16931493936 is a `hidden beast` number, since 1 + 69 + 3 + 1 + 493 + 93 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1466940 + ... + 1478436.

It is an arithmetic number, because the mean of its divisors is an integer number (347883488).

Almost surely, 2^16931493936 is an apocalyptic number.

16931493936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16931493936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27830679040).

16931493936 is an abundant number, since it is smaller than the sum of its proper divisors (38729864144).

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

16931493936 is a wasteful number, since it uses less digits than its factorization.

16931493936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12008 (or 11996 counting only the distinct ones).

The product of its digits is 2834352, while the sum is 54.

The spelling of 16931493936 in words is "sixteen billion, nine hundred thirty-one million, four hundred ninety-three thousand, nine hundred thirty-six".