166022132 has 6 divisors (see below), whose sum is σ = 290538738. Its totient is φ = 83011064.

The previous prime is 166022117. The next prime is 166022137. The reversal of 166022132 is 231220661.

It can be written as a sum of positive squares in only one way, i.e., 113081956 + 52940176 = 10634^2 + 7276^2 .

It is a junction number, because it is equal to n+sod(n) for n = 166022098 and 166022107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166022137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20752763 + ... + 20752770.

It is an arithmetic number, because the mean of its divisors is an integer number (48423123).

Almost surely, 2^166022132 is an apocalyptic number.

It is an amenable number.

166022132 is a deficient number, since it is larger than the sum of its proper divisors (124516606).

166022132 is a wasteful number, since it uses less digits than its factorization.

166022132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41505537 (or 41505535 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 166022132 is about 12884.9575862709. The cubic root of 166022132 is about 549.6108895178.

Adding to 166022132 its reverse (231220661), we get a palindrome (397242793).

The spelling of 166022132 in words is "one hundred sixty-six million, twenty-two thousand, one hundred thirty-two".