40505265152 has 176 divisors, whose sum is σ = 96072555168. Its totient is φ = 16857169920.

The previous prime is 40505265137. The next prime is 40505265179. The reversal of 40505265152 is 25156250504.

It is a tau number, because it is divible by the number of its divisors (176).

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, 7082198 + ... + 7087914.

Almost surely, 2^40505265152 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 40505265152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48036277584).

40505265152 is an abundant number, since it is smaller than the sum of its proper divisors (55567290016).

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

40505265152 is a wasteful number, since it uses less digits than its factorization.

40505265152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5802 (or 5784 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 40505265152 in words is "forty billion, five hundred five million, two hundred sixty-five thousand, one hundred fifty-two".