215334179142 has 32 divisors (see below), whose sum is σ = 432007115904. Its totient is φ = 71555232000.

The previous prime is 215334179129. The next prime is 215334179143. The reversal of 215334179142 is 241971433512.

It is a junction number, because it is equal to n+sod(n) for n = 215334179094 and 215334179103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215334179143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2908342 + ... + 2981462.

It is an arithmetic number, because the mean of its divisors is an integer number (13500222372).

Almost surely, 2^215334179142 is an apocalyptic number.

215334179142 is an abundant number, since it is smaller than the sum of its proper divisors (216672936762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215334179142 is a wasteful number, since it uses less digits than its factorization.

215334179142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74644.

The product of its digits is 181440, while the sum is 42.

The spelling of 215334179142 in words is "two hundred fifteen billion, three hundred thirty-four million, one hundred seventy-nine thousand, one hundred forty-two".