1351166521208 has 128 divisors (see below), whose sum is σ = 3074244096000. Its totient is φ = 543844730880.

The previous prime is 1351166521181. The next prime is 1351166521213. The reversal of 1351166521208 is 8021256611531.

It is a congruent number.

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, 57170738 + ... + 57194366.

It is an arithmetic number, because the mean of its divisors is an integer number (24017532000).

Almost surely, 2^{1351166521208} 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 1351166521208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1537122048000).

1351166521208 is an abundant number, since it is smaller than the sum of its proper divisors (1723077574792).

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

1351166521208 is a wasteful number, since it uses less digits than its factorization.

1351166521208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24125 (or 24121 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 1351166521208 in words is "one trillion, three hundred fifty-one billion, one hundred sixty-six million, five hundred twenty-one thousand, two hundred eight".