166273610 has 8 divisors (see below), whose sum is σ = 299292516. Its totient is φ = 66509440.

The previous prime is 166273609. The next prime is 166273631. The reversal of 166273610 is 16372661.

It can be written as a sum of positive squares in 2 ways, for example, as 154281241 + 11992369 = 12421^2 + 3463^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×166273610⁴ (a number of 34 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8313671 + ... + 8313690.

Almost surely, 2^166273610 is an apocalyptic number.

166273610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166273610 is a deficient number, since it is larger than the sum of its proper divisors (133018906).

166273610 is a wasteful number, since it uses less digits than its factorization.

166273610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16627368.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 166273610 is about 12894.7124822541. The cubic root of 166273610 is about 549.8882527792. Note that the first 3 decimals are identical.

The spelling of 166273610 in words is "one hundred sixty-six million, two hundred seventy-three thousand, six hundred ten".