845664466548 has 24 divisors (see below), whose sum is σ = 2152600460640. Its totient is φ = 256261959520.

The previous prime is 845664466501. The next prime is 845664466561.

It is a happy number.

845664466548 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×845664466548² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3203274363 + ... + 3203274626.

It is an arithmetic number, because the mean of its divisors is an integer number (89691685860).

Almost surely, 2^845664466548 is an apocalyptic number.

It is an amenable number.

845664466548 is an abundant number, since it is smaller than the sum of its proper divisors (1306935994092).

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

845664466548 is a wasteful number, since it uses less digits than its factorization.

845664466548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6406549007 (or 6406549005 counting only the distinct ones).

The product of its digits is 530841600, while the sum is 66.

The spelling of 845664466548 in words is "eight hundred forty-five billion, six hundred sixty-four million, four hundred sixty-six thousand, five hundred forty-eight".