64216662 has 32 divisors (see below), whose sum is σ = 131276160. Its totient is φ = 20935680.

The previous prime is 64216639. The next prime is 64216679. The reversal of 64216662 is 26661246.

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, 99862 + ... + 100502.

It is an arithmetic number, because the mean of its divisors is an integer number (4102380).

Almost surely, 2^64216662 is an apocalyptic number.

64216662 is an abundant number, since it is smaller than the sum of its proper divisors (67059498).

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

64216662 is a wasteful number, since it uses less digits than its factorization.

64216662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988.

The product of its digits is 20736, while the sum is 33.

The square root of 64216662 is about 8013.5299338057. The cubic root of 64216662 is about 400.4508707646.

The spelling of 64216662 in words is "sixty-four million, two hundred sixteen thousand, six hundred sixty-two".