243016375355247 has 16 divisors (see below), whose sum is σ = 367312200268160. Its totient is φ = 141677562959712.

The previous prime is 243016375355231. The next prime is 243016375355321. The reversal of 243016375355247 is 742553573610342.

It is not a de Polignac number, because 243016375355247 - 2⁴ = 243016375355231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243016375356247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163978660093 + ... + 163978661574.

It is an arithmetic number, because the mean of its divisors is an integer number (22957012516760).

Almost surely, 2^{243016375355247} is an apocalyptic number.

243016375355247 is a deficient number, since it is larger than the sum of its proper divisors (124295824912913).

243016375355247 is a wasteful number, since it uses less digits than its factorization.

243016375355247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327957321702.

The product of its (nonzero) digits is 63504000, while the sum is 57.

The spelling of 243016375355247 in words is "two hundred forty-three trillion, sixteen billion, three hundred seventy-five million, three hundred fifty-five thousand, two hundred forty-seven".