66311703 has 20 divisors (see below), whose sum is σ = 99627528. Its totient is φ = 43953840.

The previous prime is 66311701. The next prime is 66311723. The reversal of 66311703 is 30711366.

It is not a de Polignac number, because 66311703 - 2¹ = 66311701 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66311701) 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 19 ways as a sum of consecutive naturals, for example, 12400 + ... + 16922.

Almost surely, 2^66311703 is an apocalyptic number.

66311703 is a deficient number, since it is larger than the sum of its proper divisors (33315825).

66311703 is a wasteful number, since it uses less digits than its factorization.

66311703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4716 (or 4707 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 66311703 is about 8143.1998010610. The cubic root of 66311703 is about 404.7591984183.

The spelling of 66311703 in words is "sixty-six million, three hundred eleven thousand, seven hundred three".