43016545440 has 432 divisors, whose sum is σ = 162125203968. Its totient is φ = 10378368000.

The previous prime is 43016545417. The next prime is 43016545513. The reversal of 43016545440 is 4454561034.

43016545440 is a `hidden beast` number, since 4 + 3 + 0 + 165 + 454 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 43016545395 and 43016545404.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 47218585 + ... + 47219495.

It is an arithmetic number, because the mean of its divisors is an integer number (375289824).

Almost surely, 2^43016545440 is an apocalyptic number.

43016545440 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 43016545440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81062601984).

43016545440 is an abundant number, since it is smaller than the sum of its proper divisors (119108658528).

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

43016545440 is a wasteful number, since it uses less digits than its factorization.

43016545440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225 (or 1203 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 43016545440 in words is "forty-three billion, sixteen million, five hundred forty-five thousand, four hundred forty".