166392045 has 24 divisors (see below), whose sum is σ = 289310112. Its totient is φ = 88466400.

The previous prime is 166392043. The next prime is 166392047. The reversal of 166392045 is 540293661.

It is a happy number.

166392045 is a `hidden beast` number, since 16 + 639 + 2 + 0 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (166392043) and next prime (166392047).

It is not a de Polignac number, because 166392045 - 2¹ = 166392043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166392041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9310 + ... + 20480.

It is an arithmetic number, because the mean of its divisors is an integer number (12054588).

Almost surely, 2^166392045 is an apocalyptic number.

166392045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166392045 is a deficient number, since it is larger than the sum of its proper divisors (122918067).

166392045 is a wasteful number, since it uses less digits than its factorization.

166392045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11513 (or 11510 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 166392045 is about 12899.3040509944. The cubic root of 166392045 is about 550.0187817278.

The spelling of 166392045 in words is "one hundred sixty-six million, three hundred ninety-two thousand, forty-five".