80699950080 has 352 divisors, whose sum is σ = 290373991680. Its totient is φ = 21517000704.

The previous prime is 80699950049. The next prime is 80699950099. The reversal of 80699950080 is 8005999608.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 80699949999 and 80699950026.

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, 11193837 + ... + 11201043.

Almost surely, 2^80699950080 is an apocalyptic number.

80699950080 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 80699950080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145186995840).

80699950080 is an abundant number, since it is smaller than the sum of its proper divisors (209674041600).

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

80699950080 is an frugal number, since it uses more digits than its factorization.

80699950080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7253 (or 7217 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The spelling of 80699950080 in words is "eighty billion, six hundred ninety-nine million, nine hundred fifty thousand, eighty".