512312166 has 72 divisors (see below), whose sum is σ = 1170829296. Its totient is φ = 161879520.

The previous prime is 512312147. The next prime is 512312197. The reversal of 512312166 is 661213215.

It is a super-2 number, since 2×512312166² = 524927510863223112, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1647151 + ... + 1647461.

It is an arithmetic number, because the mean of its divisors is an integer number (16261518).

Almost surely, 2^512312166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512312166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (585414648).

512312166 is an abundant number, since it is smaller than the sum of its proper divisors (658517130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

512312166 is a wasteful number, since it uses less digits than its factorization.

512312166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 512 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 512312166 is about 22634.3139061028. The cubic root of 512312166 is about 800.1625534266.

The spelling of 512312166 in words is "five hundred twelve million, three hundred twelve thousand, one hundred sixty-six".