215352022727540 has 48 divisors (see below), whose sum is σ = 476070295821120. Its totient is φ = 81602113881600.

The previous prime is 215352022727507. The next prime is 215352022727599. The reversal of 215352022727540 is 45727220253512.

It is a happy number.

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, 10998686 + ... + 23487765.

It is an arithmetic number, because the mean of its divisors is an integer number (9918131162940).

Almost surely, 2^{215352022727540} is an apocalyptic number.

215352022727540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215352022727540 is an abundant number, since it is smaller than the sum of its proper divisors (260718273093580).

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

215352022727540 is a wasteful number, since it uses less digits than its factorization.

215352022727540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34502912 (or 34502910 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 47.

The spelling of 215352022727540 in words is "two hundred fifteen trillion, three hundred fifty-two billion, twenty-two million, seven hundred twenty-seven thousand, five hundred forty".