11172167445 has 16 divisors (see below), whose sum is σ = 17877851712. Its totient is φ = 5957694720.

The previous prime is 11172167431. The next prime is 11172167459. The reversal of 11172167445 is 54476127111.

It is an interprime number because it is at equal distance from previous prime (11172167431) and next prime (11172167459).

It is not a de Polignac number, because 11172167445 - 2⁴ = 11172167429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76989 + ... + 168141.

It is an arithmetic number, because the mean of its divisors is an integer number (1117365732).

Almost surely, 2^11172167445 is an apocalyptic number.

11172167445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11172167445 is a deficient number, since it is larger than the sum of its proper divisors (6705684267).

11172167445 is an equidigital number, since it uses as much as digits as its factorization.

11172167445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99332.

The product of its digits is 47040, while the sum is 39.

The spelling of 11172167445 in words is "eleven billion, one hundred seventy-two million, one hundred sixty-seven thousand, four hundred forty-five".