4222660061556 has 18 divisors (see below), whose sum is σ = 10673946266802. Its totient is φ = 1407553353840.

The previous prime is 4222660061513. The next prime is 4222660061567. The reversal of 4222660061556 is 6551600662224.

4222660061556 is a `hidden beast` number, since 4 + 2 + 2 + 26 + 6 + 0 + 0 + 615 + 5 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3230524537956 + 992135523600 = 1797366^2 + 996060^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×4222660061556² (a number of 26 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 5 ways as a sum of consecutive naturals, for example, 58648056375 + ... + 58648056446.

Almost surely, 2^{4222660061556} is an apocalyptic number.

It is an amenable number.

4222660061556 is an abundant number, since it is smaller than the sum of its proper divisors (6451286205246).

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

4222660061556 is a wasteful number, since it uses less digits than its factorization.

4222660061556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117296112831 (or 117296112826 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 4222660061556 in words is "four trillion, two hundred twenty-two billion, six hundred sixty million, sixty-one thousand, five hundred fifty-six".