166607025 has 48 divisors (see below), whose sum is σ = 299605824. Its totient is φ = 81204480.

The previous prime is 166607017. The next prime is 166607039. The reversal of 166607025 is 520706661.

It is not a de Polignac number, because 166607025 - 2³ = 166607017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103527 + ... + 105123.

It is an arithmetic number, because the mean of its divisors is an integer number (6241788).

Almost surely, 2^166607025 is an apocalyptic number.

166607025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166607025 is a deficient number, since it is larger than the sum of its proper divisors (132998799).

166607025 is a wasteful number, since it uses less digits than its factorization.

166607025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730 (or 1725 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 166607025 is about 12907.6343688532. The cubic root of 166607025 is about 550.2555561692.

The spelling of 166607025 in words is "one hundred sixty-six million, six hundred seven thousand, twenty-five".