11611506064 has 10 divisors (see below), whose sum is σ = 22497293030. Its totient is φ = 5805753024.

The previous prime is 11611506061. The next prime is 11611506077. The reversal of 11611506064 is 46060511611.

It can be written as a sum of positive squares in only one way, i.e., 8896262400 + 2715243664 = 94320^2 + 52108^2 .

It is not an unprimeable number, because it can be changed into a prime (11611506061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362859549 + ... + 362859580.

It is an arithmetic number, because the mean of its divisors is an integer number (2249729303).

Almost surely, 2^11611506064 is an apocalyptic number.

It is an amenable number.

11611506064 is a deficient number, since it is larger than the sum of its proper divisors (10885786966).

11611506064 is an equidigital number, since it uses as much as digits as its factorization.

11611506064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725719137 (or 725719131 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 11611506064 in words is "eleven billion, six hundred eleven million, five hundred six thousand, sixty-four".