16170238464 has 80 divisors (see below), whose sum is σ = 44242965888. Its totient is φ = 5244383232.

The previous prime is 16170238463. The next prime is 16170238493. The reversal of 16170238464 is 46483207161.

It is a super-2 number, since 2×16170238464² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16170238463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85432 + ... + 199095.

Almost surely, 2^16170238464 is an apocalyptic number.

It is an amenable number.

16170238464 is an abundant number, since it is smaller than the sum of its proper divisors (28072727424).

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

16170238464 is an equidigital number, since it uses as much as digits as its factorization.

16170238464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284585 (or 284569 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 16170238464 in words is "sixteen billion, one hundred seventy million, two hundred thirty-eight thousand, four hundred sixty-four".