240053660643321 has 80 divisors (see below), whose sum is σ = 415970275906944. Its totient is φ = 135117580156416.

The previous prime is 240053660643319. The next prime is 240053660643331. The reversal of 240053660643321 is 123346066350042.

240053660643321 is a `hidden beast` number, since 2 + 4 + 0 + 0 + 5 + 3 + 6 + 606 + 4 + 3 + 32 + 1 = 666.

It is not a de Polignac number, because 240053660643321 - 2¹ = 240053660643319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240053660643311) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 624080971 + ... + 624465503.

Almost surely, 2^{240053660643321} is an apocalyptic number.

240053660643321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

240053660643321 is a deficient number, since it is larger than the sum of its proper divisors (175916615263623).

240053660643321 is a wasteful number, since it uses less digits than its factorization.

240053660643321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401052 (or 401043 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 45.

The spelling of 240053660643321 in words is "two hundred forty trillion, fifty-three billion, six hundred sixty million, six hundred forty-three thousand, three hundred twenty-one".