666107094380 has 288 divisors, whose sum is σ = 1777230056448. Its totient is φ = 204202252800.

The previous prime is 666107094283. The next prime is 666107094409. The reversal of 666107094380 is 83490701666.

666107094380 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-2 number, since 2×666107094380² (a number of 24 digits) contains 22 as substring.

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, 440837825 + ... + 440839335.

It is an arithmetic number, because the mean of its divisors is an integer number (6170937696).

Almost surely, 2^666107094380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 666107094380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (888615028224).

666107094380 is an abundant number, since it is smaller than the sum of its proper divisors (1111122962068).

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

666107094380 is a wasteful number, since it uses less digits than its factorization.

666107094380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757 (or 1712 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 666107094380 in words is "six hundred sixty-six billion, one hundred seven million, ninety-four thousand, three hundred eighty".