66345662 has 32 divisors (see below), whose sum is σ = 112974912. Its totient is φ = 29044224.

The previous prime is 66345659. The next prime is 66345691. The reversal of 66345662 is 26654366.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 27788 + ... + 30080.

It is an arithmetic number, because the mean of its divisors is an integer number (3530466).

Almost surely, 2^66345662 is an apocalyptic number.

66345662 is a deficient number, since it is larger than the sum of its proper divisors (46629250).

66345662 is a wasteful number, since it uses less digits than its factorization.

66345662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372.

The product of its digits is 155520, while the sum is 38.

The square root of 66345662 is about 8145.2846481876. The cubic root of 66345662 is about 404.8282806029.

The spelling of 66345662 in words is "sixty-six million, three hundred forty-five thousand, six hundred sixty-two".