166251074 has 16 divisors (see below), whose sum is σ = 272341440. Its totient is φ = 75486960.

The previous prime is 166251067. The next prime is 166251077. The reversal of 166251074 is 470152661.

It is a self number, because there is not a number n which added to its sum of digits gives 166251074.

It is not an unprimeable number, because it can be changed into a prime (166251077) 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, 19832 + ... + 26940.

It is an arithmetic number, because the mean of its divisors is an integer number (17021340).

Almost surely, 2^166251074 is an apocalyptic number.

166251074 is a deficient number, since it is larger than the sum of its proper divisors (106090366).

166251074 is a wasteful number, since it uses less digits than its factorization.

166251074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8185.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 166251074 is about 12893.8386060940. The cubic root of 166251074 is about 549.8634085048.

The spelling of 166251074 in words is "one hundred sixty-six million, two hundred fifty-one thousand, seventy-four".