323205154540240 has 80 divisors (see below), whose sum is σ = 858808026196992. Its totient is φ = 110812452820992.

The previous prime is 323205154540207. The next prime is 323205154540243. The reversal of 323205154540240 is 42045451502323.

It is a tau number, because it is divible by the number of its divisors (80).

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 = 323205154540193 and 323205154540202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323205154540243) 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, 85153857 + ... + 88868383.

Almost surely, 2^{323205154540240} is an apocalyptic number.

It is an amenable number.

323205154540240 is an abundant number, since it is smaller than the sum of its proper divisors (535602871656752).

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

323205154540240 is a wasteful number, since it uses less digits than its factorization.

323205154540240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3869924 (or 3869918 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

The spelling of 323205154540240 in words is "three hundred twenty-three trillion, two hundred five billion, one hundred fifty-four million, five hundred forty thousand, two hundred forty".