216645002 has 16 divisors (see below), whose sum is σ = 371734272. Its totient is φ = 92762160.

The previous prime is 216644999. The next prime is 216645017. The reversal of 216645002 is 200546612.

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, 9983 + ... + 23085.

It is an arithmetic number, because the mean of its divisors is an integer number (23233392).

Almost surely, 2^216645002 is an apocalyptic number.

216645002 is a deficient number, since it is larger than the sum of its proper divisors (155089270).

216645002 is a wasteful number, since it uses less digits than its factorization.

216645002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14293.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 216645002 is about 14718.8655133471. The cubic root of 216645002 is about 600.5966305973.

The spelling of 216645002 in words is "two hundred sixteen million, six hundred forty-five thousand, two".