111478266408406 has 16 divisors (see below), whose sum is σ = 172985325582240. Its totient is φ = 53816531408640.

The previous prime is 111478266408349. The next prime is 111478266408409. The reversal of 111478266408406 is 604804662874111.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111478266408409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4426890 + ... + 15574141.

It is an arithmetic number, because the mean of its divisors is an integer number (10811582848890).

Almost surely, 2^{111478266408406} is an apocalyptic number.

111478266408406 is a deficient number, since it is larger than the sum of its proper divisors (61507059173834).

111478266408406 is a wasteful number, since it uses less digits than its factorization.

111478266408406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20097159.

The product of its (nonzero) digits is 12386304, while the sum is 58.

The spelling of 111478266408406 in words is "one hundred eleven trillion, four hundred seventy-eight billion, two hundred sixty-six million, four hundred eight thousand, four hundred six".