16670421540242 has 16 divisors (see below), whose sum is σ = 25011808093440. Its totient is φ = 8333152406592.

The previous prime is 16670421540221. The next prime is 16670421540287. The reversal of 16670421540242 is 24204512407661.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16670421540193 and 16670421540202.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 176204483 + ... + 176299065.

It is an arithmetic number, because the mean of its divisors is an integer number (1563238005840).

Almost surely, 2^{16670421540242} is an apocalyptic number.

16670421540242 is a deficient number, since it is larger than the sum of its proper divisors (8341386553198).

16670421540242 is a wasteful number, since it uses less digits than its factorization.

16670421540242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115417.

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 16670421540242 in words is "sixteen trillion, six hundred seventy billion, four hundred twenty-one million, five hundred forty thousand, two hundred forty-two".