611675665 has 16 divisors (see below), whose sum is σ = 742670208. Its totient is φ = 483590656.

The previous prime is 611675641. The next prime is 611675681. The reversal of 611675665 is 566576116.

It is a cyclic number.

It is not a de Polignac number, because 611675665 - 2²³ = 603287057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267969 + ... + 270241.

It is an arithmetic number, because the mean of its divisors is an integer number (46416888).

Almost surely, 2^611675665 is an apocalyptic number.

It is an amenable number.

611675665 is a deficient number, since it is larger than the sum of its proper divisors (130994543).

611675665 is a wasteful number, since it uses less digits than its factorization.

611675665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888.

The product of its digits is 226800, while the sum is 43.

The square root of 611675665 is about 24732.0776523122. The cubic root of 611675665 is about 848.8684666718.

The spelling of 611675665 in words is "six hundred eleven million, six hundred seventy-five thousand, six hundred sixty-five".