1581169560160 has 96 divisors (see below), whose sum is σ = 3860232580512. Its totient is φ = 611642572800.

The previous prime is 1581169560137. The next prime is 1581169560167. The reversal of 1581169560160 is 610659611851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1581169560167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 442849 + ... + 1832608.

It is an arithmetic number, because the mean of its divisors is an integer number (40210756047).

Almost surely, 2^{1581169560160} is an apocalyptic number.

1581169560160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1581169560160 is an abundant number, since it is smaller than the sum of its proper divisors (2279063020352).

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

1581169560160 is a wasteful number, since it uses less digits than its factorization.

1581169560160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275616 (or 2275608 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 49.

The spelling of 1581169560160 in words is "one trillion, five hundred eighty-one billion, one hundred sixty-nine million, five hundred sixty thousand, one hundred sixty".