45450042164 has 12 divisors (see below), whose sum is σ = 84216254724. Its totient is φ = 21388255104.

The previous prime is 45450042163. The next prime is 45450042191. The reversal of 45450042164 is 46124005454.

It can be written as a sum of positive squares in 2 ways, for example, as 32739283600 + 12710758564 = 180940^2 + 112742^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45450042161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334191419 + ... + 334191554.

It is an arithmetic number, because the mean of its divisors is an integer number (7018021227).

Almost surely, 2^45450042164 is an apocalyptic number.

It is an amenable number.

45450042164 is a deficient number, since it is larger than the sum of its proper divisors (38766212560).

45450042164 is a wasteful number, since it uses less digits than its factorization.

45450042164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668382994 (or 668382992 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

The spelling of 45450042164 in words is "forty-five billion, four hundred fifty million, forty-two thousand, one hundred sixty-four".