11172564445 has 8 divisors (see below), whose sum is σ = 15322374144. Its totient is φ = 7661187024.

The previous prime is 11172564427. The next prime is 11172564449. The reversal of 11172564445 is 54446527111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11172564445 - 2⁵ = 11172564413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11172564398 and 11172564407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11172564449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159608029 + ... + 159608098.

It is an arithmetic number, because the mean of its divisors is an integer number (1915296768).

Almost surely, 2^11172564445 is an apocalyptic number.

It is an amenable number.

11172564445 is a deficient number, since it is larger than the sum of its proper divisors (4149809699).

11172564445 is an equidigital number, since it uses as much as digits as its factorization.

11172564445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319216139.

The product of its digits is 134400, while the sum is 40.

The spelling of 11172564445 in words is "eleven billion, one hundred seventy-two million, five hundred sixty-four thousand, four hundred forty-five".