80077091520 has 112 divisors (see below), whose sum is σ = 254424411648. Its totient is φ = 21338803200.

The previous prime is 80077091519. The next prime is 80077091527. The reversal of 80077091520 is 2519077008.

It is not an unprimeable number, because it can be changed into a prime (80077091527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1364217 + ... + 1421703.

Almost surely, 2^80077091520 is an apocalyptic number.

80077091520 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 80077091520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127212205824).

80077091520 is an abundant number, since it is smaller than the sum of its proper divisors (174347320128).

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

80077091520 is a wasteful number, since it uses less digits than its factorization.

80077091520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58958 (or 58948 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 39.

The spelling of 80077091520 in words is "eighty billion, seventy-seven million, ninety-one thousand, five hundred twenty".