11715328901 has 16 divisors (see below), whose sum is σ = 11982654000. Its totient is φ = 11451568128.

The previous prime is 11715328879. The next prime is 11715328909. The reversal of 11715328901 is 10982351711.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 13498276 + 11701830625 = 3674^2 + 108175^2 .

It is a cyclic number.

It is not a de Polignac number, because 11715328901 - 2⁶ = 11715328837 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 (11715328909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4594775 + ... + 4597323.

It is an arithmetic number, because the mean of its divisors is an integer number (748915875).

Almost surely, 2^11715328901 is an apocalyptic number.

It is an amenable number.

11715328901 is a deficient number, since it is larger than the sum of its proper divisors (267325099).

11715328901 is a wasteful number, since it uses less digits than its factorization.

11715328901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208.

The product of its (nonzero) digits is 15120, while the sum is 38.

The spelling of 11715328901 in words is "eleven billion, seven hundred fifteen million, three hundred twenty-eight thousand, nine hundred one".