857815553360 has 160 divisors (see below), whose sum is σ = 2050410765312. Its totient is φ = 333623347200.

The previous prime is 857815553333. The next prime is 857815553473. The reversal of 857815553360 is 63355518758.

857815553360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 857815553296 and 857815553305.

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, 259863710 + ... + 259867010.

Almost surely, 2^857815553360 is an apocalyptic number.

857815553360 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 857815553360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1025205382656).

857815553360 is an abundant number, since it is smaller than the sum of its proper divisors (1192595211952).

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

857815553360 is a wasteful number, since it uses less digits than its factorization.

857815553360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3901 (or 3895 counting only the distinct ones).

The product of its (nonzero) digits is 15120000, while the sum is 56.

The spelling of 857815553360 in words is "eight hundred fifty-seven billion, eight hundred fifteen million, five hundred fifty-three thousand, three hundred sixty".