665700348 has 24 divisors (see below), whose sum is σ = 1644671952. Its totient is φ = 208847104.

The previous prime is 665700311. The next prime is 665700349. The reversal of 665700348 is 843007566.

It is a super-2 number, since 2×665700348² = 886313906654642208, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) 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 (665700349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1631415 + ... + 1631822.

It is an arithmetic number, because the mean of its divisors is an integer number (68527998).

Almost surely, 2^665700348 is an apocalyptic number.

665700348 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

665700348 is an abundant number, since it is smaller than the sum of its proper divisors (978971604).

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

665700348 is a wasteful number, since it uses less digits than its factorization.

665700348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263261 (or 3263259 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 665700348 is about 25801.1695083769. The cubic root of 665700348 is about 873.1581820858.

The spelling of 665700348 in words is "six hundred sixty-five million, seven hundred thousand, three hundred forty-eight".