66350457 has 12 divisors (see below), whose sum is σ = 96476224. Its totient is φ = 43939800.

The previous prime is 66350411. The next prime is 66350477. The reversal of 66350457 is 75405366.

It is not a de Polignac number, because 66350457 - 2¹² = 66346361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66350407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23053 + ... + 25770.

Almost surely, 2^66350457 is an apocalyptic number.

It is an amenable number.

66350457 is a deficient number, since it is larger than the sum of its proper divisors (30125767).

66350457 is a wasteful number, since it uses less digits than its factorization.

66350457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48980 (or 48977 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 66350457 is about 8145.5789849464. The cubic root of 66350457 is about 404.8380330860.

The spelling of 66350457 in words is "sixty-six million, three hundred fifty thousand, four hundred fifty-seven".