22167666452 has 6 divisors (see below), whose sum is σ = 38793416298. Its totient is φ = 11083833224.

The previous prime is 22167666427. The next prime is 22167666503. The reversal of 22167666452 is 25466676122.

It can be written as a sum of positive squares in only one way, i.e., 19447418116 + 2720248336 = 139454^2 + 52156^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22167666397 and 22167666406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2770958303 + ... + 2770958310.

It is an arithmetic number, because the mean of its divisors is an integer number (6465569383).

Almost surely, 2^22167666452 is an apocalyptic number.

It is an amenable number.

22167666452 is a deficient number, since it is larger than the sum of its proper divisors (16625749846).

22167666452 is a wasteful number, since it uses less digits than its factorization.

22167666452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5541916617 (or 5541916615 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 47.

The spelling of 22167666452 in words is "twenty-two billion, one hundred sixty-seven million, six hundred sixty-six thousand, four hundred fifty-two".