40520655412524 has 216 divisors, whose sum is σ = 119368742220000. Its totient is φ = 11556097943040.

The previous prime is 40520655412507. The next prime is 40520655412571. The reversal of 40520655412524 is 42521455602504.

40520655412524 is a `hidden beast` number, since 4 + 0 + 5 + 2 + 0 + 65 + 54 + 12 + 524 = 666.

40520655412524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40520655412524.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2322224952 + ... + 2322242400.

Almost surely, 2^{40520655412524} 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 40520655412524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59684371110000).

40520655412524 is an abundant number, since it is smaller than the sum of its proper divisors (78848086807476).

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

40520655412524 is a wasteful number, since it uses less digits than its factorization.

40520655412524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19813 (or 19801 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 45.

The spelling of 40520655412524 in words is "forty trillion, five hundred twenty billion, six hundred fifty-five million, four hundred twelve thousand, five hundred twenty-four".