1861447146160 has 80 divisors (see below), whose sum is σ = 4949643470400. Its totient is φ = 637757227008.

The previous prime is 1861447146107. The next prime is 1861447146217. The reversal of 1861447146160 is 616417441681.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390525 + ... + 1968604.

It is an arithmetic number, because the mean of its divisors is an integer number (61870543380).

Almost surely, 2^{1861447146160} is an apocalyptic number.

1861447146160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1861447146160 is an abundant number, since it is smaller than the sum of its proper divisors (3088196324240).

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

1861447146160 is a wasteful number, since it uses less digits than its factorization.

1861447146160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360558 (or 2360552 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 1861447146160 in words is "one trillion, eight hundred sixty-one billion, four hundred forty-seven million, one hundred forty-six thousand, one hundred sixty".