40555521502240 has 24 divisors (see below), whose sum is σ = 95812419549420. Its totient is φ = 16222208600832.

The previous prime is 40555521502151. The next prime is 40555521502273. The reversal of 40555521502240 is 4220512555504.

It can be written as a sum of positive squares in 2 ways, for example, as 39208185582736 + 1347335919504 = 6261644^2 + 1160748^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 40555521502193 and 40555521502202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126736004535 + ... + 126736004854.

Almost surely, 2^{40555521502240} is an apocalyptic number.

40555521502240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40555521502240 is an abundant number, since it is smaller than the sum of its proper divisors (55256898047180).

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

40555521502240 is a wasteful number, since it uses less digits than its factorization.

40555521502240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253472009404 (or 253472009396 counting only the distinct ones).

The product of its (nonzero) digits is 400000, while the sum is 40.

The spelling of 40555521502240 in words is "forty trillion, five hundred fifty-five billion, five hundred twenty-one million, five hundred two thousand, two hundred forty".