325743647775666 has 16 divisors (see below), whose sum is σ = 651489023221344. Its totient is φ = 108580927980224.

The previous prime is 325743647775653. The next prime is 325743647775683. The reversal of 325743647775666 is 666577746347523.

It is a super-2 number, since 2×325743647775666² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 325743647775591 and 325743647775600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69528711 + ... + 74065706.

It is an arithmetic number, because the mean of its divisors is an integer number (40718063951334).

Almost surely, 2^{325743647775666} is an apocalyptic number.

325743647775666 is an abundant number, since it is smaller than the sum of its proper divisors (325745375445678).

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

325743647775666 is a wasteful number, since it uses less digits than its factorization.

325743647775666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143972505.

The product of its digits is 22404211200, while the sum is 78.

The spelling of 325743647775666 in words is "three hundred twenty-five trillion, seven hundred forty-three billion, six hundred forty-seven million, seven hundred seventy-five thousand, six hundred sixty-six".