90200812216 has 8 divisors (see below), whose sum is σ = 169126522920. Its totient is φ = 45100406104.

The previous prime is 90200812133. The next prime is 90200812231. The reversal of 90200812216 is 61221800209.

It is a tau number, because it is divible by the number of its divisors (8).

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, 5637550756 + ... + 5637550771.

It is an arithmetic number, because the mean of its divisors is an integer number (21140815365).

Almost surely, 2^90200812216 is an apocalyptic number.

It is an amenable number.

90200812216 is a deficient number, since it is larger than the sum of its proper divisors (78925710704).

90200812216 is a wasteful number, since it uses less digits than its factorization.

90200812216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11275101533 (or 11275101529 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 90200812216 in words is "ninety billion, two hundred million, eight hundred twelve thousand, two hundred sixteen".