80455349520 has 1600 divisors, whose sum is σ = 372656148480. Its totient is φ = 15613710336.

The previous prime is 80455349497. The next prime is 80455349531. The reversal of 80455349520 is 2594355408.

80455349520 is a `hidden beast` number, since 8 + 0 + 4 + 5 + 534 + 95 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 481768477 + ... + 481768643.

Almost surely, 2^80455349520 is an apocalyptic number.

80455349520 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 80455349520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186328074240).

80455349520 is an abundant number, since it is smaller than the sum of its proper divisors (292200798960).

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

80455349520 is a wasteful number, since it uses less digits than its factorization.

80455349520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 80455349520 in words is "eighty billion, four hundred fifty-five million, three hundred forty-nine thousand, five hundred twenty".