8172656898240 has 224 divisors, whose sum is σ = 26179651805184. Its totient is φ = 2159970140160.

The previous prime is 8172656898173. The next prime is 8172656898247. The reversal of 8172656898240 is 428986562718.

It is not an unprimeable number, because it can be changed into a prime (8172656898247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119081535 + ... + 119150145.

Almost surely, 2^{8172656898240} is an apocalyptic number.

8172656898240 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 8172656898240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13089825902592).

8172656898240 is an abundant number, since it is smaller than the sum of its proper divisors (18006994906944).

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

8172656898240 is a wasteful number, since it uses less digits than its factorization.

8172656898240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69735 (or 69725 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 66.

The spelling of 8172656898240 in words is "eight trillion, one hundred seventy-two billion, six hundred fifty-six million, eight hundred ninety-eight thousand, two hundred forty".