166174426 has 16 divisors (see below), whose sum is σ = 275649408. Its totient is φ = 74498400.

The previous prime is 166174387. The next prime is 166174427. The reversal of 166174426 is 624471661.

It is a super-2 number, since 2×166174426² = 55227879712858952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166174427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50130 + ... + 53341.

It is an arithmetic number, because the mean of its divisors is an integer number (17228088).

Almost surely, 2^166174426 is an apocalyptic number.

166174426 is a deficient number, since it is larger than the sum of its proper divisors (109474982).

166174426 is a wasteful number, since it uses less digits than its factorization.

166174426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103557.

The product of its digits is 48384, while the sum is 37.

The square root of 166174426 is about 12890.8659910807. The cubic root of 166174426 is about 549.7788929422.

The spelling of 166174426 in words is "one hundred sixty-six million, one hundred seventy-four thousand, four hundred twenty-six".