40455561216 has 224 divisors, whose sum is σ = 129784815360. Its totient is φ = 10949492736.

The previous prime is 40455561203. The next prime is 40455561229. The reversal of 40455561216 is 61216555404.

It is an interprime number because it is at equal distance from previous prime (40455561203) and next prime (40455561229).

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3262420 + ... + 3274796.

Almost surely, 2^40455561216 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 40455561216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64892407680).

40455561216 is an abundant number, since it is smaller than the sum of its proper divisors (89329254144).

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

40455561216 is a wasteful number, since it uses less digits than its factorization.

40455561216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12432 (or 12408 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 40455561216 in words is "forty billion, four hundred fifty-five million, five hundred sixty-one thousand, two hundred sixteen".