8157280660320 has 192 divisors, whose sum is σ = 28346343621120. Its totient is φ = 1955303116800.

The previous prime is 8157280660247. The next prime is 8157280660381. The reversal of 8157280660320 is 230660827518.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 8157280660320.

It is a congruent number.

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, 8209516 + ... + 9149355.

It is an arithmetic number, because the mean of its divisors is an integer number (147637206360).

Almost surely, 2^{8157280660320} is an apocalyptic number.

8157280660320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8157280660320 is an abundant number, since it is smaller than the sum of its proper divisors (20189062960800).

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

8157280660320 is a wasteful number, since it uses less digits than its factorization.

8157280660320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17358989 (or 17358981 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 8157280660320 in words is "eight trillion, one hundred fifty-seven billion, two hundred eighty million, six hundred sixty thousand, three hundred twenty".