11611611206572 has 12 divisors (see below), whose sum is σ = 21883421120176. Its totient is φ = 5359205172240.

The previous prime is 11611611206567. The next prime is 11611611206579. The reversal of 11611611206572 is 27560211611611.

It is not an unprimeable number, because it can be changed into a prime (11611611206579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111650107704 + ... + 111650107807.

Almost surely, 2^{11611611206572} is an apocalyptic number.

It is an amenable number.

11611611206572 is a deficient number, since it is larger than the sum of its proper divisors (10271809913604).

11611611206572 is a wasteful number, since it uses less digits than its factorization.

11611611206572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223300215528 (or 223300215526 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 40.

The spelling of 11611611206572 in words is "eleven trillion, six hundred eleven billion, six hundred eleven million, two hundred six thousand, five hundred seventy-two".