84481640560 has 20 divisors (see below), whose sum is σ = 196419814488. Its totient is φ = 33792656192.

The previous prime is 84481640557. The next prime is 84481640647. The reversal of 84481640560 is 6504618448.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×84481640560² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84481640560.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528010174 + ... + 528010333.

Almost surely, 2^84481640560 is an apocalyptic number.

84481640560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84481640560 is an abundant number, since it is smaller than the sum of its proper divisors (111938173928).

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

84481640560 is a wasteful number, since it uses less digits than its factorization.

84481640560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056020520 (or 1056020514 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 46.

The spelling of 84481640560 in words is "eighty-four billion, four hundred eighty-one million, six hundred forty thousand, five hundred sixty".