83530063840 has 24 divisors (see below), whose sum is σ = 197339776200. Its totient is φ = 33412025472.

The previous prime is 83530063823. The next prime is 83530063853. The reversal of 83530063840 is 4836003538.

It is a super-2 number, since 2×83530063840² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 83530063793 and 83530063802.

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, 261031290 + ... + 261031609.

It is an arithmetic number, because the mean of its divisors is an integer number (8222490675).

Almost surely, 2^83530063840 is an apocalyptic number.

83530063840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

83530063840 is an abundant number, since it is smaller than the sum of its proper divisors (113809712360).

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

83530063840 is a wasteful number, since it uses less digits than its factorization.

83530063840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522062914 (or 522062906 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 83530063840 in words is "eighty-three billion, five hundred thirty million, sixty-three thousand, eight hundred forty".