10401163720 has 128 divisors (see below), whose sum is σ = 25528335840. Its totient is φ = 3798466560.

The previous prime is 10401163691. The next prime is 10401163739. The reversal of 10401163720 is 2736110401.

It can be written as a sum of positive squares in 16 ways, for example, as 215913636 + 10185250084 = 14694^2 + 100922^2 .

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, 5379874 + ... + 5381806.

Almost surely, 2^10401163720 is an apocalyptic number.

10401163720 is a gapful number since it is divisible by the number (10) 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 10401163720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12764167920).

10401163720 is an abundant number, since it is smaller than the sum of its proper divisors (15127172120).

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

10401163720 is a wasteful number, since it uses less digits than its factorization.

10401163720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195 (or 2191 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The spelling of 10401163720 in words is "ten billion, four hundred one million, one hundred sixty-three thousand, seven hundred twenty".