668148762 has 8 divisors (see below), whose sum is σ = 1336297536. Its totient is φ = 222716252.

The previous prime is 668148731. The next prime is 668148763. The reversal of 668148762 is 267841866.

It is a sphenic number, since it is the product of 3 distinct primes.

668148762 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (668148763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55679058 + ... + 55679069.

It is an arithmetic number, because the mean of its divisors is an integer number (167037192).

Almost surely, 2^668148762 is an apocalyptic number.

668148762 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

668148762 is a wasteful number, since it uses less digits than its factorization.

668148762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111358132.

The product of its digits is 774144, while the sum is 48.

The square root of 668148762 is about 25848.5736937263. The cubic root of 668148762 is about 874.2273503648.

The spelling of 668148762 in words is "six hundred sixty-eight million, one hundred forty-eight thousand, seven hundred sixty-two".