945669966549 has 48 divisors (see below), whose sum is σ = 1584309006336. Its totient is φ = 491140219680.

The previous prime is 945669966517. The next prime is 945669966559.

945669966549 is nontrivially palindromic in base 10.

945669966549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 945669966549 - 2⁵ = 945669966517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (945669966559) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11196772 + ... + 11280914.

It is an arithmetic number, because the mean of its divisors is an integer number (33006437632).

Almost surely, 2^945669966549 is an apocalyptic number.

It is an amenable number.

945669966549 is a deficient number, since it is larger than the sum of its proper divisors (638639039787).

945669966549 is a wasteful number, since it uses less digits than its factorization.

945669966549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88598 (or 88587 counting only the distinct ones).

The product of its digits is 3401222400, while the sum is 78.

The spelling of 945669966549 in words is "nine hundred forty-five billion, six hundred sixty-nine million, nine hundred sixty-six thousand, five hundred forty-nine".