240554315223421 has 16 divisors (see below), whose sum is σ = 241318724025024. Its totient is φ = 239790961073664.

The previous prime is 240554315223413. The next prime is 240554315223433. The reversal of 240554315223421 is 124322513455042.

It is a cyclic number.

It is not a de Polignac number, because 240554315223421 - 2³ = 240554315223413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240554315223451) 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, 4280526295 + ... + 4280582491.

It is an arithmetic number, because the mean of its divisors is an integer number (15082420251564).

Almost surely, 2^{240554315223421} is an apocalyptic number.

It is an amenable number.

240554315223421 is a deficient number, since it is larger than the sum of its proper divisors (764408801603).

240554315223421 is a wasteful number, since it uses less digits than its factorization.

240554315223421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65340.

The product of its (nonzero) digits is 1152000, while the sum is 43.

Adding to 240554315223421 its reverse (124322513455042), we get a palindrome (364876828678463).

The spelling of 240554315223421 in words is "two hundred forty trillion, five hundred fifty-four billion, three hundred fifteen million, two hundred twenty-three thousand, four hundred twenty-one".