63166140 has 72 divisors (see below), whose sum is σ = 196083888. Its totient is φ = 16450560.

The previous prime is 63166139. The next prime is 63166153. The reversal of 63166140 is 4166136.

It is a super-2 number, since 2×63166140² = 7979922484999200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3660 + ... + 11820.

Almost surely, 2^63166140 is an apocalyptic number.

63166140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63166140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98041944).

63166140 is an abundant number, since it is smaller than the sum of its proper divisors (132917748).

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

63166140 is a wasteful number, since it uses less digits than its factorization.

63166140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8219 (or 8214 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 63166140 is about 7947.7128785582. The cubic root of 63166140 is about 398.2551918442.

The spelling of 63166140 in words is "sixty-three million, one hundred sixty-six thousand, one hundred forty".