216526012 has 6 divisors (see below), whose sum is σ = 378920528. Its totient is φ = 108263004.

The previous prime is 216526007. The next prime is 216526031. The reversal of 216526012 is 210625612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27065748 + ... + 27065755.

Almost surely, 2^216526012 is an apocalyptic number.

It is an amenable number.

216526012 is a deficient number, since it is larger than the sum of its proper divisors (162394516).

216526012 is a wasteful number, since it uses less digits than its factorization.

216526012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54131507 (or 54131505 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 216526012 is about 14714.8228667558. The cubic root of 216526012 is about 600.4866533223.

The spelling of 216526012 in words is "two hundred sixteen million, five hundred twenty-six thousand, twelve".