115155450222542 has 16 divisors (see below), whose sum is σ = 172769288068080. Its totient is φ = 57565688492928.

The previous prime is 115155450222499. The next prime is 115155450222551. The reversal of 115155450222542 is 245222054551511.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 115155450222493 and 115155450222502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253633718 + ... + 254087334.

It is an arithmetic number, because the mean of its divisors is an integer number (10798080504255).

Almost surely, 2^{115155450222542} is an apocalyptic number.

115155450222542 is a deficient number, since it is larger than the sum of its proper divisors (57613837845538).

115155450222542 is a wasteful number, since it uses less digits than its factorization.

115155450222542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479875.

The product of its (nonzero) digits is 800000, while the sum is 44.

The spelling of 115155450222542 in words is "one hundred fifteen trillion, one hundred fifty-five billion, four hundred fifty million, two hundred twenty-two thousand, five hundred forty-two".