40446062646640 has 40 divisors (see below), whose sum is σ = 107470966462560. Its totient is φ = 13867221478656.

The previous prime is 40446062646617. The next prime is 40446062646697. The reversal of 40446062646640 is 4664626064404.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 36112555375 + ... + 36112556494.

It is an arithmetic number, because the mean of its divisors is an integer number (2686774161564).

Almost surely, 2^{40446062646640} is an apocalyptic number.

40446062646640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40446062646640 is an abundant number, since it is smaller than the sum of its proper divisors (67024903815920).

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

40446062646640 is a wasteful number, since it uses less digits than its factorization.

40446062646640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72225111889 (or 72225111883 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 52.

The spelling of 40446062646640 in words is "forty trillion, four hundred forty-six billion, sixty-two million, six hundred forty-six thousand, six hundred forty".