616965667 has 2 divisors, whose sum is σ = 616965668. Its totient is φ = 616965666.

The previous prime is 616965637. The next prime is 616965673. The reversal of 616965667 is 766569616.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 616965667 - 2²⁷ = 482747939 is a prime.

It is not a weakly prime, because it can be changed into another prime (616965607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308482833 + 308482834.

It is an arithmetic number, because the mean of its divisors is an integer number (308482834).

Almost surely, 2^616965667 is an apocalyptic number.

616965667 is a deficient number, since it is larger than the sum of its proper divisors (1).

616965667 is an equidigital number, since it uses as much as digits as its factorization.

616965667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 52.

The square root of 616965667 is about 24838.7935898666. The cubic root of 616965667 is about 851.3085574794.

The spelling of 616965667 in words is "six hundred sixteen million, nine hundred sixty-five thousand, six hundred sixty-seven".