616432064 has 14 divisors (see below), whose sum is σ = 1223232504. Its totient is φ = 308216000.

The previous prime is 616432051. The next prime is 616432097. The reversal of 616432064 is 460234616.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 616432064.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 4815812 + ... + 4815939.

Almost surely, 2^616432064 is an apocalyptic number.

616432064 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

616432064 is a deficient number, since it is larger than the sum of its proper divisors (606800440).

616432064 is an equidigital number, since it uses as much as digits as its factorization.

616432064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9631763 (or 9631753 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 616432064 is about 24828.0499435618. The cubic root of 616432064 is about 851.0630593108.

The spelling of 616432064 in words is "six hundred sixteen million, four hundred thirty-two thousand, sixty-four".