215361706830 has 32 divisors (see below), whose sum is σ = 517014813600. Its totient is φ = 57413486592.

The previous prime is 215361706829. The next prime is 215361706831. The reversal of 215361706830 is 38607163512.

215361706830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (215361706829) and next prime (215361706831).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215361706831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 911235 + ... + 1122974.

It is an arithmetic number, because the mean of its divisors is an integer number (16156712925).

Almost surely, 2^215361706830 is an apocalyptic number.

215361706830 is an abundant number, since it is smaller than the sum of its proper divisors (301653106770).

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

215361706830 is a wasteful number, since it uses less digits than its factorization.

215361706830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037748.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 215361706830 in words is "two hundred fifteen billion, three hundred sixty-one million, seven hundred six thousand, eight hundred thirty".