7653600661 has 8 divisors (see below), whose sum is σ = 8748169344. Its totient is φ = 6559331280.

The previous prime is 7653600637. The next prime is 7653600671. The reversal of 7653600661 is 1660063567.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7653600661 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 (7653600601) 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, 17050 + ... + 124891.

It is an arithmetic number, because the mean of its divisors is an integer number (1093521168).

Almost surely, 2^7653600661 is an apocalyptic number.

It is an amenable number.

7653600661 is a deficient number, since it is larger than the sum of its proper divisors (1094568683).

7653600661 is a wasteful number, since it uses less digits than its factorization.

7653600661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149651.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 7653600661 is about 87484.8596101063. The cubic root of 7653600661 is about 1970.7064264587.

The spelling of 7653600661 in words is "seven billion, six hundred fifty-three million, six hundred thousand, six hundred sixty-one".