666516350 has 24 divisors (see below), whose sum is σ = 1241819328. Its totient is φ = 266155200.

The previous prime is 666516343. The next prime is 666516359. The reversal of 666516350 is 53615666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666516359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19370 + ... + 41330.

It is an arithmetic number, because the mean of its divisors is an integer number (51742472).

Almost surely, 2^666516350 is an apocalyptic number.

666516350 is a deficient number, since it is larger than the sum of its proper divisors (575302978).

666516350 is a wasteful number, since it uses less digits than its factorization.

666516350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22580 (or 22575 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 666516350 is about 25816.9779408822. The cubic root of 666516350 is about 873.5148029493.

The spelling of 666516350 in words is "six hundred sixty-six million, five hundred sixteen thousand, three hundred fifty".