863738166120 has 128 divisors (see below), whose sum is σ = 2801313244800. Its totient is φ = 212310014976.

The previous prime is 863738165993. The next prime is 863738166197. The reversal of 863738166120 is 21661837368.

It is a super-2 number, since 2×863738166120² (a number of 25 digits) contains 22 as substring.

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, 5034999 + ... + 5203718.

It is an arithmetic number, because the mean of its divisors is an integer number (21885259725).

Almost surely, 2^863738166120 is an apocalyptic number.

It is an amenable number.

863738166120 is an abundant number, since it is smaller than the sum of its proper divisors (1937575078680).

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

863738166120 is a wasteful number, since it uses less digits than its factorization.

863738166120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10238787 (or 10238783 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 863738166120 in words is "eight hundred sixty-three billion, seven hundred thirty-eight million, one hundred sixty-six thousand, one hundred twenty".