11655664144 has 10 divisors (see below), whose sum is σ = 22582849310. Its totient is φ = 5827832064.

The previous prime is 11655664103. The next prime is 11655664211. The reversal of 11655664144 is 44146655611.

It can be written as a sum of positive squares in only one way, i.e., 8120172544 + 3535491600 = 90112^2 + 59460^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11655664144.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364239489 + ... + 364239520.

It is an arithmetic number, because the mean of its divisors is an integer number (2258284931).

Almost surely, 2^11655664144 is an apocalyptic number.

It is an amenable number.

11655664144 is a deficient number, since it is larger than the sum of its proper divisors (10927185166).

11655664144 is an equidigital number, since it uses as much as digits as its factorization.

11655664144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728479017 (or 728479011 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The spelling of 11655664144 in words is "eleven billion, six hundred fifty-five million, six hundred sixty-four thousand, one hundred forty-four".