215153042333440 has 36 divisors (see below), whose sum is σ = 515358771717384. Its totient is φ = 86061216932864.

The previous prime is 215153042333417. The next prime is 215153042333459. The reversal of 215153042333440 is 44333240351512.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 215153042333393 and 215153042333402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84044155882 + ... + 84044158441.

It is an arithmetic number, because the mean of its divisors is an integer number (14315521436594).

Almost surely, 2^{215153042333440} is an apocalyptic number.

215153042333440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215153042333440 is an abundant number, since it is smaller than the sum of its proper divisors (300205729383944).

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

215153042333440 is an equidigital number, since it uses as much as digits as its factorization.

215153042333440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168088314344 (or 168088314330 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 40.

Adding to 215153042333440 its reverse (44333240351512), we get a palindrome (259486282684952).

The spelling of 215153042333440 in words is "two hundred fifteen trillion, one hundred fifty-three billion, forty-two million, three hundred thirty-three thousand, four hundred forty".