22164777711556 has 6 divisors (see below), whose sum is σ = 38788360995230. Its totient is φ = 11082388855776.

The previous prime is 22164777711553. The next prime is 22164777711607. The reversal of 22164777711556 is 65511777746122.

It can be written as a sum of positive squares in only one way, i.e., 11289398400900 + 10875379310656 = 3359970^2 + 3297784^2 .

It is a super-2 number, since 2×22164777711556² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22164777711494 and 22164777711503.

It is not an unprimeable number, because it can be changed into a prime (22164777711553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2770597213941 + ... + 2770597213948.

Almost surely, 2^{22164777711556} is an apocalyptic number.

It is an amenable number.

22164777711556 is a deficient number, since it is larger than the sum of its proper divisors (16623583283674).

22164777711556 is a wasteful number, since it uses less digits than its factorization.

22164777711556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5541194427893 (or 5541194427891 counting only the distinct ones).

The product of its digits is 34574400, while the sum is 61.

The spelling of 22164777711556 in words is "twenty-two trillion, one hundred sixty-four billion, seven hundred seventy-seven million, seven hundred eleven thousand, five hundred fifty-six".