22663277449956 has 216 divisors, whose sum is σ = 68446722157632. Its totient is φ = 6280130102400.

The previous prime is 22663277449927. The next prime is 22663277449973. The reversal of 22663277449956 is 65994477236622.

It is a happy number.

22663277449956 is a `hidden beast` number, since 2 + 2 + 6 + 63 + 2 + 7 + 74 + 499 + 5 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4189041 + ... + 7929351.

It is an arithmetic number, because the mean of its divisors is an integer number (316882972952).

Almost surely, 2^{22663277449956} is an apocalyptic number.

22663277449956 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22663277449956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34223361078816).

22663277449956 is an abundant number, since it is smaller than the sum of its proper divisors (45783444707676).

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

22663277449956 is a wasteful number, since it uses less digits than its factorization.

22663277449956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740463 (or 3740447 counting only the distinct ones).

The product of its digits is 1646023680, while the sum is 72.

The spelling of 22663277449956 in words is "twenty-two trillion, six hundred sixty-three billion, two hundred seventy-seven million, four hundred forty-nine thousand, nine hundred fifty-six".