40552444164 has 144 divisors (see below), whose sum is σ = 103414006080. Its totient is φ = 12358287360.

The previous prime is 40552444157. The next prime is 40552444213. The reversal of 40552444164 is 46144425504.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43651252 + ... + 43652180.

It is an arithmetic number, because the mean of its divisors is an integer number (718152820).

Almost surely, 2^40552444164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40552444164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51707003040).

40552444164 is an abundant number, since it is smaller than the sum of its proper divisors (62861561916).

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

40552444164 is a wasteful number, since it uses less digits than its factorization.

40552444164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318 (or 1299 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 39.

Adding to 40552444164 its reverse (46144425504), we get a palindrome (86696869668).

The spelling of 40552444164 in words is "forty billion, five hundred fifty-two million, four hundred forty-four thousand, one hundred sixty-four".