16171970464 has 48 divisors (see below), whose sum is σ = 35124009480. Its totient is φ = 7281930240.

The previous prime is 16171970459. The next prime is 16171970483. The reversal of 16171970464 is 46407917161.

It can be written as a sum of positive squares in 4 ways, for example, as 10318496400 + 5853474064 = 101580^2 + 76508^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457029 + ... + 491140.

Almost surely, 2^16171970464 is an apocalyptic number.

It is an amenable number.

16171970464 is an abundant number, since it is smaller than the sum of its proper divisors (18952039016).

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

16171970464 is a wasteful number, since it uses less digits than its factorization.

16171970464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948233 (or 948225 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 16171970464 in words is "sixteen billion, one hundred seventy-one million, nine hundred seventy thousand, four hundred sixty-four".