681303038705163 has 32 divisors (see below), whose sum is σ = 1153557231244800. Its totient is φ = 389306478689568.

The previous prime is 681303038705143. The next prime is 681303038705203. The reversal of 681303038705163 is 361507830303186.

681303038705163 is a `hidden beast` number, since 6 + 8 + 13 + 0 + 30 + 3 + 87 + 0 + 516 + 3 = 666.

It is not a de Polignac number, because 681303038705163 - 2¹³ = 681303038696971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (681303038705143) 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, 36448473 + ... + 51875786.

It is an arithmetic number, because the mean of its divisors is an integer number (36048663476400).

Almost surely, 2^{681303038705163} is an apocalyptic number.

681303038705163 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

681303038705163 is a deficient number, since it is larger than the sum of its proper divisors (472254192539637).

681303038705163 is a wasteful number, since it uses less digits than its factorization.

681303038705163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88365088 (or 88365082 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 681303038705163 in words is "six hundred eighty-one trillion, three hundred three billion, thirty-eight million, seven hundred five thousand, one hundred sixty-three".