11655957222 has 72 divisors (see below), whose sum is σ = 31637629296. Its totient is φ = 3074095584.

The previous prime is 11655957191. The next prime is 11655957293. The reversal of 11655957222 is 22275955611.

11655957222 is a `hidden beast` number, since 1 + 1 + 6 + 5 + 59 + 572 + 22 = 666.

It is a super-2 number, since 2×11655957222² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 496818 + ... + 519749.

It is an arithmetic number, because the mean of its divisors is an integer number (439411518).

Almost surely, 2^11655957222 is an apocalyptic number.

11655957222 is an abundant number, since it is smaller than the sum of its proper divisors (19981672074).

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

11655957222 is a wasteful number, since it uses less digits than its factorization.

11655957222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016602 (or 1016592 counting only the distinct ones).

The product of its digits is 378000, while the sum is 45.

The spelling of 11655957222 in words is "eleven billion, six hundred fifty-five million, nine hundred fifty-seven thousand, two hundred twenty-two".