66341388 has 24 divisors (see below), whose sum is σ = 162944320. Its totient is φ = 20949840.

The previous prime is 66341351. The next prime is 66341419. The reversal of 66341388 is 88314366.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145258 + ... + 145713.

Almost surely, 2^66341388 is an apocalyptic number.

It is an amenable number.

66341388 is an abundant number, since it is smaller than the sum of its proper divisors (96602932).

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

66341388 is a wasteful number, since it uses less digits than its factorization.

66341388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290997 (or 290995 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 66341388 is about 8145.0222835791. The cubic root of 66341388 is about 404.8195873783.

The spelling of 66341388 in words is "sixty-six million, three hundred forty-one thousand, three hundred eighty-eight".