83649646100 has 36 divisors (see below), whose sum is σ = 181788002844. Its totient is φ = 33410407680.

The previous prime is 83649646079. The next prime is 83649646103. The reversal of 83649646100 is 164694638.

It can be written as a sum of positive squares in 6 ways, for example, as 4141437316 + 79508208784 = 64354^2 + 281972^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83649646103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 550097 + ... + 685496.

Almost surely, 2^83649646100 is an apocalyptic number.

It is an amenable number.

83649646100 is an abundant number, since it is smaller than the sum of its proper divisors (98138356744).

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

83649646100 is a wasteful number, since it uses less digits than its factorization.

83649646100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236284 (or 1236277 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 83649646100 in words is "eighty-three billion, six hundred forty-nine million, six hundred forty-six thousand, one hundred".