45091065866 has 48 divisors (see below), whose sum is σ = 85947806592. Its totient is φ = 17544240000.

The previous prime is 45091065857. The next prime is 45091065869. The reversal of 45091065866 is 66856019054.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (45091065869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 781730 + ... + 837426.

It is an arithmetic number, because the mean of its divisors is an integer number (1790579304).

Almost surely, 2^45091065866 is an apocalyptic number.

45091065866 is a deficient number, since it is larger than the sum of its proper divisors (40856740726).

45091065866 is a wasteful number, since it uses less digits than its factorization.

45091065866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56475 (or 56468 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 45091065866 in words is "forty-five billion, ninety-one million, sixty-five thousand, eight hundred sixty-six".