686258160 has 160 divisors (see below), whose sum is σ = 2509934592. Its totient is φ = 151787520.

The previous prime is 686258143. The next prime is 686258173. The reversal of 686258160 is 61852686.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 45492 + ... + 58668.

Almost surely, 2^686258160 is an apocalyptic number.

686258160 is a gapful number since it is divisible by the number (60) 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 686258160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1254967296).

686258160 is an abundant number, since it is smaller than the sum of its proper divisors (1823676432).

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

686258160 is a wasteful number, since it uses less digits than its factorization.

686258160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13231 (or 13225 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 686258160 is about 26196.5295411434. The cubic root of 686258160 is about 882.0553541187.

The spelling of 686258160 in words is "six hundred eighty-six million, two hundred fifty-eight thousand, one hundred sixty".