66703245 has 32 divisors (see below), whose sum is σ = 122888448. Its totient is φ = 30263808.

The previous prime is 66703229. The next prime is 66703261. The reversal of 66703245 is 54230766.

It is an interprime number because it is at equal distance from previous prime (66703229) and next prime (66703261).

It is not a de Polignac number, because 66703245 - 2⁴ = 66703229 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 12067 + ... + 16703.

It is an arithmetic number, because the mean of its divisors is an integer number (3840264).

Almost surely, 2^66703245 is an apocalyptic number.

It is an amenable number.

66703245 is a deficient number, since it is larger than the sum of its proper divisors (56185203).

66703245 is a wasteful number, since it uses less digits than its factorization.

66703245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4789.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 66703245 is about 8167.2054584172. The cubic root of 66703245 is about 405.5542784166.

The spelling of 66703245 in words is "sixty-six million, seven hundred three thousand, two hundred forty-five".