216252670 has 16 divisors (see below), whose sum is σ = 406179360. Its totient is φ = 82740064.

The previous prime is 216252653. The next prime is 216252677. The reversal of 216252670 is 76252612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216252677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469885 + ... + 470344.

It is an arithmetic number, because the mean of its divisors is an integer number (25386210).

Almost surely, 2^216252670 is an apocalyptic number.

216252670 is a deficient number, since it is larger than the sum of its proper divisors (189926690).

216252670 is a wasteful number, since it uses less digits than its factorization.

216252670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940259.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 216252670 is about 14705.5319522960. The cubic root of 216252670 is about 600.2338625390.

The spelling of 216252670 in words is "two hundred sixteen million, two hundred fifty-two thousand, six hundred seventy".