1613664432 has 60 divisors (see below), whose sum is σ = 4558268520. Its totient is φ = 532856064.

The previous prime is 1613664427. The next prime is 1613664469. The reversal of 1613664432 is 2344663161.

1613664432 is a `hidden beast` number, since 1 + 6 + 1 + 3 + 6 + 644 + 3 + 2 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36957 + ... + 67772.

It is an arithmetic number, because the mean of its divisors is an integer number (75971142).

Almost surely, 2^1613664432 is an apocalyptic number.

1613664432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1613664432 is an abundant number, since it is smaller than the sum of its proper divisors (2944604088).

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

1613664432 is a wasteful number, since it uses less digits than its factorization.

1613664432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104850 (or 104841 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 1613664432 is about 40170.4422679163. The cubic root of 1613664432 is about 1172.9272482749.

The spelling of 1613664432 in words is "one billion, six hundred thirteen million, six hundred sixty-four thousand, four hundred thirty-two".