166150004 has 6 divisors (see below), whose sum is σ = 290762514. Its totient is φ = 83075000.

The previous prime is 166150001. The next prime is 166150007. The reversal of 166150004 is 400051661.

It is an interprime number because it is at equal distance from previous prime (166150001) and next prime (166150007).

It can be written as a sum of positive squares in only one way, i.e., 147573904 + 18576100 = 12148^2 + 4310^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166150001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20768747 + ... + 20768754.

It is an arithmetic number, because the mean of its divisors is an integer number (48460419).

Almost surely, 2^166150004 is an apocalyptic number.

It is an amenable number.

166150004 is a deficient number, since it is larger than the sum of its proper divisors (124612510).

166150004 is a wasteful number, since it uses less digits than its factorization.

166150004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41537505 (or 41537503 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 166150004 is about 12889.9186964077. The cubic root of 166150004 is about 549.7519586775.

The spelling of 166150004 in words is "one hundred sixty-six million, one hundred fifty thousand, four".