639114095466 has 192 divisors, whose sum is σ = 1736056647936. Its totient is φ = 165081369600.

The previous prime is 639114095437. The next prime is 639114095479. The reversal of 639114095466 is 664590411936.

It is a happy number.

639114095466 is a `hidden beast` number, since 6 + 3 + 91 + 1 + 4 + 0 + 9 + 546 + 6 = 666.

639114095466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 238741320 + ... + 238743996.

It is an arithmetic number, because the mean of its divisors is an integer number (9041961708).

Almost surely, 2^639114095466 is an apocalyptic number.

639114095466 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 639114095466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (868028323968).

639114095466 is an abundant number, since it is smaller than the sum of its proper divisors (1096942552470).

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

639114095466 is a wasteful number, since it uses less digits than its factorization.

639114095466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3597 (or 3594 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The spelling of 639114095466 in words is "six hundred thirty-nine billion, one hundred fourteen million, ninety-five thousand, four hundred sixty-six".