243151553215 has 8 divisors (see below), whose sum is σ = 297287182368. Its totient is φ = 190851030240.

The previous prime is 243151553209. The next prime is 243151553233. The reversal of 243151553215 is 512355151342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-243151553215 is a prime.

It is a super-3 number, since 3×243151553215³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458776251 + ... + 458776780.

It is an arithmetic number, because the mean of its divisors is an integer number (37160897796).

Almost surely, 2^243151553215 is an apocalyptic number.

243151553215 is a deficient number, since it is larger than the sum of its proper divisors (54135629153).

243151553215 is an equidigital number, since it uses as much as digits as its factorization.

243151553215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917553089.

The product of its digits is 90000, while the sum is 37.

The spelling of 243151553215 in words is "two hundred forty-three billion, one hundred fifty-one million, five hundred fifty-three thousand, two hundred fifteen".