16434639360 has 120 divisors (see below), whose sum is σ = 56917858140. Its totient is φ = 4382564352.

The previous prime is 16434639359. The next prime is 16434639371. The reversal of 16434639360 is 6393643461.

16434639360 is a `hidden beast` number, since 1 + 6 + 4 + 3 + 4 + 639 + 3 + 6 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16265431296 + 169208064 = 127536^2 + 13008^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×16434639360² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333615 + ... + 379694.

Almost surely, 2^16434639360 is an apocalyptic number.

16434639360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16434639360 is an abundant number, since it is smaller than the sum of its proper divisors (40483218780).

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

16434639360 is an equidigital number, since it uses as much as digits as its factorization.

16434639360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713338 (or 713319 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 45.

The spelling of 16434639360 in words is "sixteen billion, four hundred thirty-four million, six hundred thirty-nine thousand, three hundred sixty".