66500662 has 4 divisors (see below), whose sum is σ = 99750996. Its totient is φ = 33250330.

The previous prime is 66500657. The next prime is 66500663. The reversal of 66500662 is 26600566.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26600566 = 2 ⋅13300283.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66500663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16625164 + ... + 16625167.

It is an arithmetic number, because the mean of its divisors is an integer number (24937749).

Almost surely, 2^66500662 is an apocalyptic number.

66500662 is a deficient number, since it is larger than the sum of its proper divisors (33250334).

66500662 is a wasteful number, since it uses less digits than its factorization.

66500662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33250333.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 66500662 is about 8154.7938048733. The cubic root of 66500662 is about 405.1432953285.

The spelling of 66500662 in words is "sixty-six million, five hundred thousand, six hundred sixty-two".