66750350 has 12 divisors (see below), whose sum is σ = 124155744. Its totient is φ = 26700120.

The previous prime is 66750349. The next prime is 66750391. The reversal of 66750350 is 5305766.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 667454 + ... + 667553.

It is an arithmetic number, because the mean of its divisors is an integer number (10346312).

Almost surely, 2^66750350 is an apocalyptic number.

66750350 is a deficient number, since it is larger than the sum of its proper divisors (57405394).

66750350 is a wasteful number, since it uses less digits than its factorization.

66750350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335019 (or 1335014 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 66750350 is about 8170.0887388082. The cubic root of 66750350 is about 405.6497217449.

The spelling of 66750350 in words is "sixty-six million, seven hundred fifty thousand, three hundred fifty".