1215061204346 has 32 divisors (see below), whose sum is σ = 2016252518400. Its totient is φ = 544550413680.

The previous prime is 1215061204219. The next prime is 1215061204349. The reversal of 1215061204346 is 6434021605121.

It is not an unprimeable number, because it can be changed into a prime (1215061204349) 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 15 ways as a sum of consecutive naturals, for example, 763451 + ... + 1735793.

It is an arithmetic number, because the mean of its divisors is an integer number (63007891200).

Almost surely, 2^{1215061204346} is an apocalyptic number.

1215061204346 is a deficient number, since it is larger than the sum of its proper divisors (801191314054).

1215061204346 is a wasteful number, since it uses less digits than its factorization.

1215061204346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973154.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 1215061204346 its reverse (6434021605121), we get a palindrome (7649082809467).

The spelling of 1215061204346 in words is "one trillion, two hundred fifteen billion, sixty-one million, two hundred four thousand, three hundred forty-six".