66487662 has 32 divisors (see below), whose sum is σ = 152848800. Its totient is φ = 21397824.

The previous prime is 66487643. The next prime is 66487693. The reversal of 66487662 is 26678466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19663 + ... + 22794.

It is an arithmetic number, because the mean of its divisors is an integer number (4776525).

Almost surely, 2^66487662 is an apocalyptic number.

66487662 is an abundant number, since it is smaller than the sum of its proper divisors (86361138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66487662 is a wasteful number, since it uses less digits than its factorization.

66487662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42497 (or 42491 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 66487662 is about 8153.9966887410. The cubic root of 66487662 is about 405.1168935559.

The spelling of 66487662 in words is "sixty-six million, four hundred eighty-seven thousand, six hundred sixty-two".