40521646014040 has 128 divisors (see below), whose sum is σ = 98214338376000. Its totient is φ = 14990342668288.

The previous prime is 40521646014029. The next prime is 40521646014043. The reversal of 40521646014040 is 4041064612504.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40521646014043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95796126 + ... + 96218194.

Almost surely, 2^{40521646014040} is an apocalyptic number.

40521646014040 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 40521646014040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49107169188000).

40521646014040 is an abundant number, since it is smaller than the sum of its proper divisors (57692692361960).

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

40521646014040 is a wasteful number, since it uses less digits than its factorization.

40521646014040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424549 (or 424545 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 40521646014040 in words is "forty trillion, five hundred twenty-one billion, six hundred forty-six million, fourteen thousand, forty".