16407780324 has 48 divisors (see below), whose sum is σ = 42235428480. Its totient is φ = 4925410560.

The previous prime is 16407780187. The next prime is 16407780343. The reversal of 16407780324 is 42308770461.

It is a super-4 number, since 4×16407780324⁴ (a number of 42 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1276264 + ... + 1289055.

It is an arithmetic number, because the mean of its divisors is an integer number (879904760).

Almost surely, 2^16407780324 is an apocalyptic number.

It is an amenable number.

16407780324 is an abundant number, since it is smaller than the sum of its proper divisors (25827648156).

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

16407780324 is a wasteful number, since it uses less digits than its factorization.

16407780324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565380 (or 2565378 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 16407780324 in words is "sixteen billion, four hundred seven million, seven hundred eighty thousand, three hundred twenty-four".