611317663 has 16 divisors (see below), whose sum is σ = 687102624. Its totient is φ = 538997760.

The previous prime is 611317633. The next prime is 611317687. The reversal of 611317663 is 366713116.

It is a cyclic number.

It is not a de Polignac number, because 611317663 - 2⁵ = 611317631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611317633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134931 + ... + 139387.

It is an arithmetic number, because the mean of its divisors is an integer number (42943914).

Almost surely, 2^611317663 is an apocalyptic number.

611317663 is a deficient number, since it is larger than the sum of its proper divisors (75784961).

611317663 is a wasteful number, since it uses less digits than its factorization.

611317663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4842.

The product of its digits is 13608, while the sum is 34.

The square root of 611317663 is about 24724.8389883534. The cubic root of 611317663 is about 848.7028255575.

The spelling of 611317663 in words is "six hundred eleven million, three hundred seventeen thousand, six hundred sixty-three".