215340153309798 has 32 divisors (see below), whose sum is σ = 469841794531200. Its totient is φ = 65253379028160.

The previous prime is 215340153309751. The next prime is 215340153309823. The reversal of 215340153309798 is 897903351043512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26741140 + ... + 33849207.

It is an arithmetic number, because the mean of its divisors is an integer number (14682556079100).

Almost surely, 2^{215340153309798} is an apocalyptic number.

215340153309798 is an abundant number, since it is smaller than the sum of its proper divisors (254501641221402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215340153309798 is a wasteful number, since it uses less digits than its factorization.

215340153309798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60644212.

The product of its (nonzero) digits is 24494400, while the sum is 60.

The spelling of 215340153309798 in words is "two hundred fifteen trillion, three hundred forty billion, one hundred fifty-three million, three hundred nine thousand, seven hundred ninety-eight".