1617064432 has 20 divisors (see below), whose sum is σ = 3170812680. Its totient is φ = 798790208.

The previous prime is 1617064411. The next prime is 1617064511. The reversal of 1617064432 is 2344607161.

It is a super-2 number, since 2×1617064432² = 5229794754478965248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607507 + ... + 610162.

It is an arithmetic number, because the mean of its divisors is an integer number (158540634).

Almost surely, 2^1617064432 is an apocalyptic number.

It is an amenable number.

1617064432 is a deficient number, since it is larger than the sum of its proper divisors (1553748248).

1617064432 is a wasteful number, since it uses less digits than its factorization.

1617064432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217760 (or 1217754 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 1617064432 is about 40212.7396728947. The cubic root of 1617064432 is about 1173.7504584706.

Subtracting 1617064432 from its reverse (2344607161), we obtain a square (727542729 = 26973²).

The spelling of 1617064432 in words is "one billion, six hundred seventeen million, sixty-four thousand, four hundred thirty-two".