145051805865800 has 96 divisors (see below), whose sum is σ = 348143879865600. Its totient is φ = 56145933600000.

The previous prime is 145051805865793. The next prime is 145051805865823. The reversal of 145051805865800 is 8568508150541.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111318050 + ... + 112613550.

It is an arithmetic number, because the mean of its divisors is an integer number (3626498748600).

Almost surely, 2^{145051805865800} is an apocalyptic number.

145051805865800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145051805865800 is an abundant number, since it is smaller than the sum of its proper divisors (203092073999800).

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

145051805865800 is a wasteful number, since it uses less digits than its factorization.

145051805865800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313607 (or 1313598 counting only the distinct ones).

The product of its (nonzero) digits is 7680000, while the sum is 56.

The spelling of 145051805865800 in words is "one hundred forty-five trillion, fifty-one billion, eight hundred five million, eight hundred sixty-five thousand, eight hundred".