11223445567887 has 32 divisors (see below), whose sum is σ = 19003135334400. Its totient is φ = 6413236759584.

The previous prime is 11223445567787. The next prime is 11223445567921. The reversal of 11223445567887 is 78876554432211.

11223445567887 is a `hidden beast` number, since 1 + 1 + 2 + 2 + 3 + 4 + 4 + 556 + 78 + 8 + 7 = 666.

It is not a de Polignac number, because 11223445567887 - 2¹⁵ = 11223445535119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223445567487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7032873 + ... + 8479869.

It is an arithmetic number, because the mean of its divisors is an integer number (593847979200).

Almost surely, 2^{11223445567887} is an apocalyptic number.

11223445567887 is a deficient number, since it is larger than the sum of its proper divisors (7779689766513).

11223445567887 is a wasteful number, since it uses less digits than its factorization.

11223445567887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488052 (or 1488046 counting only the distinct ones).

The product of its digits is 90316800, while the sum is 63.

The spelling of 11223445567887 in words is "eleven trillion, two hundred twenty-three billion, four hundred forty-five million, five hundred sixty-seven thousand, eight hundred eighty-seven".