10011172644 has 90 divisors (see below), whose sum is σ = 28766784662. Its totient is φ = 3033676800.

The previous prime is 10011172607. The next prime is 10011172649. The reversal of 10011172644 is 44627111001.

10011172644 is a `hidden beast` number, since 1 + 0 + 0 + 1 + 1 + 17 + 2 + 644 = 666.

10011172644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6915585600 + 3095587044 = 83160^2 + 55638^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (10011172649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 88477 + ... + 166884.

Almost surely, 2^10011172644 is an apocalyptic number.

It is an amenable number.

10011172644 is an abundant number, since it is smaller than the sum of its proper divisors (18755612018).

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

10011172644 is a wasteful number, since it uses less digits than its factorization.

10011172644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255399 (or 255377 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

Adding to 10011172644 its reverse (44627111001), we get a palindrome (54638283645).

The spelling of 10011172644 in words is "ten billion, eleven million, one hundred seventy-two thousand, six hundred forty-four".