669710148 has 24 divisors (see below), whose sum is σ = 1564006752. Its totient is φ = 223043904.

The previous prime is 669710147. The next prime is 669710149. The reversal of 669710148 is 841017966.

It is an interprime number because it is at equal distance from previous prime (669710147) and next prime (669710149).

It is not an unprimeable number, because it can be changed into a prime (669710141) 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, 9265 + ... + 37752.

It is an arithmetic number, because the mean of its divisors is an integer number (65166948).

Almost surely, 2^669710148 is an apocalyptic number.

It is an amenable number.

669710148 is an abundant number, since it is smaller than the sum of its proper divisors (894296604).

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

669710148 is a wasteful number, since it uses less digits than its factorization.

669710148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48211 (or 48209 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 669710148 is about 25878.7586255601. The cubic root of 669710148 is about 874.9078098246.

The spelling of 669710148 in words is "six hundred sixty-nine million, seven hundred ten thousand, one hundred forty-eight".