80535644000 has 576 divisors, whose sum is σ = 242652848256. Its totient is φ = 25712640000.

The previous prime is 80535643967. The next prime is 80535644069. The reversal of 80535644000 is 44653508.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1103227964 + ... + 1103228036.

It is an arithmetic number, because the mean of its divisors is an integer number (421272306).

Almost surely, 2^80535644000 is an apocalyptic number.

80535644000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80535644000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121326424128).

80535644000 is an abundant number, since it is smaller than the sum of its proper divisors (162117204256).

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

80535644000 is a wasteful number, since it uses less digits than its factorization.

80535644000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 80535644000 in words is "eighty billion, five hundred thirty-five million, six hundred forty-four thousand".