64213366 has 16 divisors (see below), whose sum is σ = 113876640. Its totient is φ = 26570880.

The previous prime is 64213349. The next prime is 64213379. The reversal of 64213366 is 66331246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78675 + ... + 79486.

It is an arithmetic number, because the mean of its divisors is an integer number (7117290).

Almost surely, 2^64213366 is an apocalyptic number.

64213366 is a deficient number, since it is larger than the sum of its proper divisors (49663274).

64213366 is a wasteful number, since it uses less digits than its factorization.

64213366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158199.

The product of its digits is 15552, while the sum is 31.

The square root of 64213366 is about 8013.3242789744. The cubic root of 64213366 is about 400.4440194345. Note that the first 3 decimals are identical.

The spelling of 64213366 in words is "sixty-four million, two hundred thirteen thousand, three hundred sixty-six".