215350244540 has 12 divisors (see below), whose sum is σ = 452235513576. Its totient is φ = 86140097808.

The previous prime is 215350244521. The next prime is 215350244609. The reversal of 215350244540 is 45442053512.

It is a self number, because there is not a number n which added to its sum of digits gives 215350244540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5383756094 + ... + 5383756133.

It is an arithmetic number, because the mean of its divisors is an integer number (37686292798).

Almost surely, 2^215350244540 is an apocalyptic number.

215350244540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215350244540 is an abundant number, since it is smaller than the sum of its proper divisors (236885269036).

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

215350244540 is a wasteful number, since it uses less digits than its factorization.

215350244540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10767512236 (or 10767512234 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 215350244540 in words is "two hundred fifteen billion, three hundred fifty million, two hundred forty-four thousand, five hundred forty".