8157588446512 has 80 divisors (see below), whose sum is σ = 17080608646080. Its totient is φ = 3762642329600.

The previous prime is 8157588446477. The next prime is 8157588446531. The reversal of 8157588446512 is 2156448857518.

It is a super-2 number, since 2×8157588446512² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8968212 + ... + 9835852.

It is an arithmetic number, because the mean of its divisors is an integer number (213507608076).

Almost surely, 2^{8157588446512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8157588446512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8540304323040).

8157588446512 is an abundant number, since it is smaller than the sum of its proper divisors (8923020199568).

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

8157588446512 is a wasteful number, since it uses less digits than its factorization.

8157588446512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868582 (or 868576 counting only the distinct ones).

The product of its digits is 86016000, while the sum is 64.

The spelling of 8157588446512 in words is "eight trillion, one hundred fifty-seven billion, five hundred eighty-eight million, four hundred forty-six thousand, five hundred twelve".