83680249560 has 128 divisors (see below), whose sum is σ = 262062120960. Its totient is φ = 21335846400.

The previous prime is 83680249529. The next prime is 83680249603. The reversal of 83680249560 is 6594208638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9354690 + ... + 9363630.

It is an arithmetic number, because the mean of its divisors is an integer number (2047360320).

Almost surely, 2^83680249560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83680249560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131031060480).

83680249560 is an abundant number, since it is smaller than the sum of its proper divisors (178381871400).

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

83680249560 is a wasteful number, since it uses less digits than its factorization.

83680249560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12369 (or 12365 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 83680249560 in words is "eighty-three billion, six hundred eighty million, two hundred forty-nine thousand, five hundred sixty".