40448623218016 has 48 divisors (see below), whose sum is σ = 85909050955728. Its totient is φ = 18635900659200.

The previous prime is 40448623217999. The next prime is 40448623218023. The reversal of 40448623218016 is 61081232684404.

It is a super-2 number, since 2×40448623218016² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84904555 + ... + 85379626.

It is an arithmetic number, because the mean of its divisors is an integer number (1789771894911).

Almost surely, 2^{40448623218016} is an apocalyptic number.

It is an amenable number.

40448623218016 is an abundant number, since it is smaller than the sum of its proper divisors (45460427737712).

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

40448623218016 is a wasteful number, since it uses less digits than its factorization.

40448623218016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170284775 (or 170284767 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 49.

The spelling of 40448623218016 in words is "forty trillion, four hundred forty-eight billion, six hundred twenty-three million, two hundred eighteen thousand, sixteen".