40561600000 has 240 divisors, whose sum is σ = 102709019952. Its totient is φ = 16000000000.

The previous prime is 40561599977. The next prime is 40561600031. The reversal of 40561600000 is 616504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161599875 + ... + 161600125.

Almost surely, 2^40561600000 is an apocalyptic number.

40561600000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40561600000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51354509976).

40561600000 is an abundant number, since it is smaller than the sum of its proper divisors (62147419952).

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

40561600000 is an frugal number, since it uses more digits than its factorization.

40561600000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The spelling of 40561600000 in words is "forty billion, five hundred sixty-one million, six hundred thousand".