666245346 has 32 divisors (see below), whose sum is σ = 1459321920. Its totient is φ = 201522624.

The previous prime is 666245323. The next prime is 666245353. The reversal of 666245346 is 643542666.

666245346 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 2×666245346² = 887765722133319432, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 666245298 and 666245307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67785 + ... + 76988.

It is an arithmetic number, because the mean of its divisors is an integer number (45603810).

Almost surely, 2^666245346 is an apocalyptic number.

666245346 is an abundant number, since it is smaller than the sum of its proper divisors (793076574).

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

666245346 is a wasteful number, since it uses less digits than its factorization.

666245346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144850.

The product of its digits is 622080, while the sum is 42.

The square root of 666245346 is about 25811.7288456236. The cubic root of 666245346 is about 873.3963972032.

The spelling of 666245346 in words is "six hundred sixty-six million, two hundred forty-five thousand, three hundred forty-six".