111315562165442 has 128 divisors (see below), whose sum is σ = 187119768895488. Its totient is φ = 49419072691200.

The previous prime is 111315562165417. The next prime is 111315562165447. The reversal of 111315562165442 is 244561265513111.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (111315562165447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41335149848 + ... + 41335152540.

It is an arithmetic number, because the mean of its divisors is an integer number (1461873194496).

Almost surely, 2^{111315562165442} is an apocalyptic number.

111315562165442 is a deficient number, since it is larger than the sum of its proper divisors (75804206730046).

111315562165442 is a wasteful number, since it uses less digits than its factorization.

111315562165442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5784.

The product of its digits is 864000, while the sum is 47.

The spelling of 111315562165442 in words is "one hundred eleven trillion, three hundred fifteen billion, five hundred sixty-two million, one hundred sixty-five thousand, four hundred forty-two".