10111666722320 has 20 divisors (see below), whose sum is σ = 23509625129580. Its totient is φ = 4044666688896.

The previous prime is 10111666722257. The next prime is 10111666722329. The reversal of 10111666722320 is 2322766611101.

It can be written as a sum of positive squares in 2 ways, for example, as 5057659157776 + 5054007564544 = 2248924^2 + 2248112^2 .

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

It is not an unprimeable number, because it can be changed into a prime (10111666722329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63197916935 + ... + 63197917094.

It is an arithmetic number, because the mean of its divisors is an integer number (1175481256479).

Almost surely, 2^{10111666722320} is an apocalyptic number.

10111666722320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10111666722320 is an abundant number, since it is smaller than the sum of its proper divisors (13397958407260).

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

10111666722320 is a wasteful number, since it uses less digits than its factorization.

10111666722320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126395834042 (or 126395834036 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 10111666722320 in words is "ten trillion, one hundred eleven billion, six hundred sixty-six million, seven hundred twenty-two thousand, three hundred twenty".