22166156526 has 16 divisors (see below), whose sum is σ = 44417410128. Its totient is φ = 7374536000.

The previous prime is 22166156491. The next prime is 22166156539. The reversal of 22166156526 is 62565166122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3542325 + ... + 3548576.

It is an arithmetic number, because the mean of its divisors is an integer number (2776088133).

Almost surely, 2^22166156526 is an apocalyptic number.

22166156526 is an abundant number, since it is smaller than the sum of its proper divisors (22251253602).

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

22166156526 is a wasteful number, since it uses less digits than its factorization.

22166156526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7091427.

The product of its digits is 259200, while the sum is 42.

The spelling of 22166156526 in words is "twenty-two billion, one hundred sixty-six million, one hundred fifty-six thousand, five hundred twenty-six".