80602945920 has 1152 divisors, whose sum is σ = 348227436960. Its totient is φ = 17068326912.

The previous prime is 80602945901. The next prime is 80602945931. The reversal of 80602945920 is 2954920608.

It is a tau number, because it is divible by the number of its divisors (1152).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 513394482 + ... + 513394638.

Almost surely, 2^80602945920 is an apocalyptic number.

80602945920 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 80602945920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174113718480).

80602945920 is an abundant number, since it is smaller than the sum of its proper divisors (267624491040).

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

80602945920 is a wasteful number, since it uses less digits than its factorization.

80602945920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 80602945920 in words is "eighty billion, six hundred two million, nine hundred forty-five thousand, nine hundred twenty".