1215532105104 has 160 divisors (see below), whose sum is σ = 3267477475200. Its totient is φ = 388913172480.

The previous prime is 1215532105093. The next prime is 1215532105127. The reversal of 1215532105104 is 4015012355121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 350396682 + ... + 350400150.

It is an arithmetic number, because the mean of its divisors is an integer number (20421734220).

Almost surely, 2^{1215532105104} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1215532105104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1633738737600).

1215532105104 is an abundant number, since it is smaller than the sum of its proper divisors (2051945370096).

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

1215532105104 is a wasteful number, since it uses less digits than its factorization.

1215532105104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4913 (or 4907 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 1215532105104 in words is "one trillion, two hundred fifteen billion, five hundred thirty-two million, one hundred five thousand, one hundred four".