111545402145 has 16 divisors (see below), whose sum is σ = 179318490432. Its totient is φ = 59208932160.

The previous prime is 111545402123. The next prime is 111545402147. The reversal of 111545402145 is 541204545111.

It is not a de Polignac number, because 111545402145 - 2⁸ = 111545401889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111545402147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17618542 + ... + 17624871.

It is an arithmetic number, because the mean of its divisors is an integer number (11207405652).

Almost surely, 2^111545402145 is an apocalyptic number.

111545402145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111545402145 is a deficient number, since it is larger than the sum of its proper divisors (67773088287).

111545402145 is a wasteful number, since it uses less digits than its factorization.

111545402145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35243632.

The product of its (nonzero) digits is 16000, while the sum is 33.

Adding to 111545402145 its reverse (541204545111), we get a palindrome (652749947256).

The spelling of 111545402145 in words is "one hundred eleven billion, five hundred forty-five million, four hundred two thousand, one hundred forty-five".