11328072661 has 8 divisors (see below), whose sum is σ = 11417865344. Its totient is φ = 11238600960.

The previous prime is 11328072643. The next prime is 11328072709. The reversal of 11328072661 is 16627082311.

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 11328072661 - 2⁷ = 11328072533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11328072661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11328072601) 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, 9135 + ... + 150796.

It is an arithmetic number, because the mean of its divisors is an integer number (1427233168).

Almost surely, 2^11328072661 is an apocalyptic number.

It is an amenable number.

11328072661 is a deficient number, since it is larger than the sum of its proper divisors (89792683).

11328072661 is a wasteful number, since it uses less digits than its factorization.

11328072661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160491.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 11328072661 in words is "eleven billion, three hundred twenty-eight million, seventy-two thousand, six hundred sixty-one".