166213464 has 16 divisors (see below), whose sum is σ = 415533720. Its totient is φ = 55404480.

The previous prime is 166213457. The next prime is 166213483. The reversal of 166213464 is 464312661.

166213464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×166213464³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 3462757 + ... + 3462804.

Almost surely, 2^166213464 is an apocalyptic number.

It is an amenable number.

166213464 is an abundant number, since it is smaller than the sum of its proper divisors (249320256).

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

166213464 is a wasteful number, since it uses less digits than its factorization.

166213464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6925570 (or 6925566 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 166213464 is about 12892.3800750676. The cubic root of 166213464 is about 549.8219412590.

The spelling of 166213464 in words is "one hundred sixty-six million, two hundred thirteen thousand, four hundred sixty-four".