10011172645 has 4 divisors (see below), whose sum is σ = 12013407180. Its totient is φ = 8008938112.

The previous prime is 10011172607. The next prime is 10011172649. The reversal of 10011172645 is 54627111001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7383277476 + 2627895169 = 85926^2 + 51263^2 .

It is a cyclic number.

It is not a de Polignac number, because 10011172645 - 2²⁷ = 9876954917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011172649) 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, 1001117260 + ... + 1001117269.

It is an arithmetic number, because the mean of its divisors is an integer number (3003351795).

Almost surely, 2^10011172645 is an apocalyptic number.

It is an amenable number.

10011172645 is a deficient number, since it is larger than the sum of its proper divisors (2002234535).

10011172645 is an equidigital number, since it uses as much as digits as its factorization.

10011172645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002234534.

The product of its (nonzero) digits is 1680, while the sum is 28.

Adding to 10011172645 its reverse (54627111001), we get a palindrome (64638283646).

The spelling of 10011172645 in words is "ten billion, eleven million, one hundred seventy-two thousand, six hundred forty-five".