616338663 has 32 divisors (see below), whose sum is σ = 880627200. Its totient is φ = 382320000.

The previous prime is 616338599. The next prime is 616338673. The reversal of 616338663 is 366833616.

It is a happy number.

It is not a de Polignac number, because 616338663 - 2⁶ = 616338599 is a prime.

It is a super-3 number, since 3×616338663³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616338673) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 868953 + ... + 869661.

It is an arithmetic number, because the mean of its divisors is an integer number (27519600).

Almost surely, 2^616338663 is an apocalyptic number.

616338663 is a deficient number, since it is larger than the sum of its proper divisors (264288537).

616338663 is a wasteful number, since it uses less digits than its factorization.

616338663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983.

The product of its digits is 279936, while the sum is 42.

The square root of 616338663 is about 24826.1689150783. The cubic root of 616338663 is about 851.0200731433.

The spelling of 616338663 in words is "six hundred sixteen million, three hundred thirty-eight thousand, six hundred sixty-three".