40254066520 has 64 divisors (see below), whose sum is σ = 95364864000. Its totient is φ = 15249967488.

The previous prime is 40254066473. The next prime is 40254066527. The reversal of 40254066520 is 2566045204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40254066527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5102499 + ... + 5110381.

It is an arithmetic number, because the mean of its divisors is an integer number (1490076000).

Almost surely, 2^40254066520 is an apocalyptic number.

40254066520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40254066520 is an abundant number, since it is smaller than the sum of its proper divisors (55110797480).

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

40254066520 is a wasteful number, since it uses less digits than its factorization.

40254066520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14632 (or 14628 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 40254066520 in words is "forty billion, two hundred fifty-four million, sixty-six thousand, five hundred twenty".