7611670661 has 8 divisors (see below), whose sum is σ = 9210761280. Its totient is φ = 6140507328.

The previous prime is 7611670637. The next prime is 7611670699. The reversal of 7611670661 is 1660761167.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7611670661 - 2⁶ = 7611670597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7611670601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31981691 + ... + 31981928.

It is an arithmetic number, because the mean of its divisors is an integer number (1151345160).

Almost surely, 2^7611670661 is an apocalyptic number.

It is an amenable number.

7611670661 is a deficient number, since it is larger than the sum of its proper divisors (1599090619).

7611670661 is a wasteful number, since it uses less digits than its factorization.

7611670661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63963643.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 7611670661 is about 87244.8890250885. The cubic root of 7611670661 is about 1967.1010175593.

The spelling of 7611670661 in words is "seven billion, six hundred eleven million, six hundred seventy thousand, six hundred sixty-one".