80990503776 has 1152 divisors, whose sum is σ = 315061125120. Its totient is φ = 20030976000.

The previous prime is 80990503747. The next prime is 80990503793. The reversal of 80990503776 is 67730509908.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 801886126 + ... + 801886226.

It is an arithmetic number, because the mean of its divisors is an integer number (273490560).

Almost surely, 2^80990503776 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 80990503776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157530562560).

80990503776 is an abundant number, since it is smaller than the sum of its proper divisors (234070621344).

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

80990503776 is a wasteful number, since it uses less digits than its factorization.

80990503776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The spelling of 80990503776 in words is "eighty billion, nine hundred ninety million, five hundred three thousand, seven hundred seventy-six".