11461321656 has 48 divisors (see below), whose sum is σ = 31626770760. Its totient is φ = 3748355520.

The previous prime is 11461321637. The next prime is 11461321667. The reversal of 11461321656 is 65612316411.

11461321656 is a `hidden beast` number, since 1 + 1 + 461 + 32 + 165 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 11461321656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1497930 + ... + 1505561.

Almost surely, 2^11461321656 is an apocalyptic number.

It is an amenable number.

11461321656 is an abundant number, since it is smaller than the sum of its proper divisors (20165449104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11461321656 is a wasteful number, since it uses less digits than its factorization.

11461321656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003556 (or 3003549 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The spelling of 11461321656 in words is "eleven billion, four hundred sixty-one million, three hundred twenty-one thousand, six hundred fifty-six".