7646526661 has 8 divisors (see below), whose sum is σ = 7689129984. Its totient is φ = 7603950480.

The previous prime is 7646526647. The next prime is 7646526677. The reversal of 7646526661 is 1666256467.

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 7646526661 - 2⁷ = 7646526533 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 (7646524661) 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, 858316 + ... + 867178.

It is an arithmetic number, because the mean of its divisors is an integer number (961141248).

Almost surely, 2^7646526661 is an apocalyptic number.

It is an amenable number.

7646526661 is a deficient number, since it is larger than the sum of its proper divisors (42603323).

7646526661 is a wasteful number, since it uses less digits than its factorization.

7646526661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13571.

The product of its digits is 2177280, while the sum is 49.

The square root of 7646526661 is about 87444.4204109102. The cubic root of 7646526661 is about 1970.0990838016.

The spelling of 7646526661 in words is "seven billion, six hundred forty-six million, five hundred twenty-six thousand, six hundred sixty-one".