111855597453 has 12 divisors (see below), whose sum is σ = 161659836000. Its totient is φ = 74528564616.

The previous prime is 111855597439. The next prime is 111855597479. The reversal of 111855597453 is 354795558111.

111855597453 is a `hidden beast` number, since 1 + 1 + 1 + 8 + 5 + 5 + 597 + 45 + 3 = 666.

It is not a de Polignac number, because 111855597453 - 2⁵ = 111855597421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111855597453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111855557453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3469203 + ... + 3501296.

It is an arithmetic number, because the mean of its divisors is an integer number (13471653000).

Almost surely, 2^111855597453 is an apocalyptic number.

It is an amenable number.

111855597453 is a deficient number, since it is larger than the sum of its proper divisors (49804238547).

111855597453 is a wasteful number, since it uses less digits than its factorization.

111855597453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6972288 (or 6972285 counting only the distinct ones).

The product of its digits is 3780000, while the sum is 54.

The spelling of 111855597453 in words is "one hundred eleven billion, eight hundred fifty-five million, five hundred ninety-seven thousand, four hundred fifty-three".