666523350 has 48 divisors (see below), whose sum is σ = 1836645840. Its totient is φ = 177739200.

The previous prime is 666523331. The next prime is 666523357. The reversal of 666523350 is 53325666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666523357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245511 + ... + 248210.

It is an arithmetic number, because the mean of its divisors is an integer number (38263455).

Almost surely, 2^666523350 is an apocalyptic number.

666523350 is an abundant number, since it is smaller than the sum of its proper divisors (1170122490).

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

666523350 is a wasteful number, since it uses less digits than its factorization.

666523350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493742 (or 493731 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The square root of 666523350 is about 25817.1135102281. The cubic root of 666523350 is about 873.5178609299.

The spelling of 666523350 in words is "six hundred sixty-six million, five hundred twenty-three thousand, three hundred fifty".