83099871556 has 24 divisors (see below), whose sum is σ = 156625711704. Its totient is φ = 38350256640.

The previous prime is 83099871551. The next prime is 83099871557. The reversal of 83099871556 is 65517899038.

It can be written as a sum of positive squares in 4 ways, for example, as 8042502400 + 75057369156 = 89680^2 + 273966^2 .

It is a super-2 number, since 2×83099871556² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83099871494 and 83099871503.

It is not an unprimeable number, because it can be changed into a prime (83099871551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546636 + ... + 681916.

It is an arithmetic number, because the mean of its divisors is an integer number (6526071321).

Almost surely, 2^83099871556 is an apocalyptic number.

It is an amenable number.

83099871556 is a deficient number, since it is larger than the sum of its proper divisors (73525840148).

83099871556 is a wasteful number, since it uses less digits than its factorization.

83099871556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147111 (or 147109 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 61.

The spelling of 83099871556 in words is "eighty-three billion, ninety-nine million, eight hundred seventy-one thousand, five hundred fifty-six".