215802828801 has 64 divisors (see below), whose sum is σ = 381647831040. Its totient is φ = 117836389440.

The previous prime is 215802828793. The next prime is 215802828821. The reversal of 215802828801 is 108828208512.

215802828801 is a `hidden beast` number, since 21 + 580 + 28 + 28 + 8 + 0 + 1 = 666.

It is not a de Polignac number, because 215802828801 - 2³ = 215802828793 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (215802828821) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4413976 + ... + 4462598.

It is an arithmetic number, because the mean of its divisors is an integer number (5963247360).

Almost surely, 2^215802828801 is an apocalyptic number.

215802828801 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

215802828801 is a deficient number, since it is larger than the sum of its proper divisors (165845002239).

215802828801 is a wasteful number, since it uses less digits than its factorization.

215802828801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49683 (or 49677 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 45.

The spelling of 215802828801 in words is "two hundred fifteen billion, eight hundred two million, eight hundred twenty-eight thousand, eight hundred one".