4120816207440 has 80 divisors (see below), whose sum is σ = 12775480281216. Its totient is φ = 1098802598400.

The previous prime is 4120816207427. The next prime is 4120816207471. The reversal of 4120816207440 is 447026180214.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×4120816207440² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2630170 + ... + 3893510.

Almost surely, 2^{4120816207440} is an apocalyptic number.

4120816207440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4120816207440 is an abundant number, since it is smaller than the sum of its proper divisors (8654664073776).

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

4120816207440 is a wasteful number, since it uses less digits than its factorization.

4120816207440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276948 (or 1276942 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The spelling of 4120816207440 in words is "four trillion, one hundred twenty billion, eight hundred sixteen million, two hundred seven thousand, four hundred forty".