856535537360 has 20 divisors (see below), whose sum is σ = 1991445124548. Its totient is φ = 342614214912.

The previous prime is 856535537339. The next prime is 856535537381. The reversal of 856535537360 is 63735535658.

It is an interprime number because it is at equal distance from previous prime (856535537339) and next prime (856535537381).

It can be written as a sum of positive squares in 2 ways, for example, as 616878293056 + 239657244304 = 785416^2 + 489548^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 856535537296 and 856535537305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5353347029 + ... + 5353347188.

Almost surely, 2^856535537360 is an apocalyptic number.

856535537360 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

856535537360 is an abundant number, since it is smaller than the sum of its proper divisors (1134909587188).

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

856535537360 is a wasteful number, since it uses less digits than its factorization.

856535537360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10706694230 (or 10706694224 counting only the distinct ones).

The product of its (nonzero) digits is 34020000, while the sum is 56.

The spelling of 856535537360 in words is "eight hundred fifty-six billion, five hundred thirty-five million, five hundred thirty-seven thousand, three hundred sixty".