166061007 has 24 divisors (see below), whose sum is σ = 288562560. Its totient is φ = 89897040.

The previous prime is 166060991. The next prime is 166061033. The reversal of 166061007 is 700160661.

It is not a de Polignac number, because 166061007 - 2⁴ = 166060991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166061407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68169 + ... + 70562.

It is an arithmetic number, because the mean of its divisors is an integer number (12023440).

Almost surely, 2^166061007 is an apocalyptic number.

166061007 is a deficient number, since it is larger than the sum of its proper divisors (122501553).

166061007 is a wasteful number, since it uses less digits than its factorization.

166061007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138763 (or 138760 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 166061007 is about 12886.4660399972. The cubic root of 166061007 is about 549.6537843127.

The spelling of 166061007 in words is "one hundred sixty-six million, sixty-one thousand, seven".