166275045 has 64 divisors (see below), whose sum is σ = 319127040. Its totient is φ = 81828864.

The previous prime is 166274993. The next prime is 166275071. The reversal of 166275045 is 540572661.

It is a happy number.

It is not a de Polignac number, because 166275045 - 2⁹ = 166274533 is a prime.

It is a super-3 number, since 3×166275045³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 120952 + ... + 122318.

It is an arithmetic number, because the mean of its divisors is an integer number (4986360).

Almost surely, 2^166275045 is an apocalyptic number.

166275045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166275045 is a deficient number, since it is larger than the sum of its proper divisors (152851995).

166275045 is a wasteful number, since it uses less digits than its factorization.

166275045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451 (or 1445 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 166275045 is about 12894.7681250963. The cubic root of 166275045 is about 549.8898346846.

The spelling of 166275045 in words is "one hundred sixty-six million, two hundred seventy-five thousand, forty-five".