111455580545 has 16 divisors (see below), whose sum is σ = 135073511040. Its totient is φ = 88280285184.

The previous prime is 111455580479. The next prime is 111455580547. The reversal of 111455580545 is 545085554111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111455580545 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111455580496 and 111455580505.

It is not an unprimeable number, because it can be changed into a prime (111455580547) 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 15 ways as a sum of consecutive naturals, for example, 2770817 + ... + 2810753.

It is an arithmetic number, because the mean of its divisors is an integer number (8442094440).

Almost surely, 2^111455580545 is an apocalyptic number.

It is an amenable number.

111455580545 is a deficient number, since it is larger than the sum of its proper divisors (23617930495).

111455580545 is a wasteful number, since it uses less digits than its factorization.

111455580545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45464.

The product of its (nonzero) digits is 400000, while the sum is 44.

The spelling of 111455580545 in words is "one hundred eleven billion, four hundred fifty-five million, five hundred eighty thousand, five hundred forty-five".