1217880006146 has 8 divisors (see below), whose sum is σ = 1827573966144. Its totient is φ = 608688684100.

The previous prime is 1217880006121. The next prime is 1217880006151. The reversal of 1217880006146 is 6416000887121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1217880006097 and 1217880006106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125653430 + ... + 125663121.

It is an arithmetic number, because the mean of its divisors is an integer number (228446745768).

Almost surely, 2^{1217880006146} is an apocalyptic number.

1217880006146 is a deficient number, since it is larger than the sum of its proper divisors (609693959998).

1217880006146 is a wasteful number, since it uses less digits than its factorization.

1217880006146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251318976.

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 1217880006146 in words is "one trillion, two hundred seventeen billion, eight hundred eighty million, six thousand, one hundred forty-six".