215841266450 has 24 divisors (see below), whose sum is σ = 408269248560. Its totient is φ = 84873174800.

The previous prime is 215841266429. The next prime is 215841266461. The reversal of 215841266450 is 54662148512.

215841266450 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36580316 + ... + 36586215.

It is an arithmetic number, because the mean of its divisors is an integer number (17011218690).

Almost surely, 2^215841266450 is an apocalyptic number.

215841266450 is a deficient number, since it is larger than the sum of its proper divisors (192427982110).

215841266450 is a wasteful number, since it uses less digits than its factorization.

215841266450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73166602 (or 73166597 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 215841266450 in words is "two hundred fifteen billion, eight hundred forty-one million, two hundred sixty-six thousand, four hundred fifty".