1645514004456 has 64 divisors (see below), whose sum is σ = 5223853987200. Its totient is φ = 470146857984.

The previous prime is 1645514004443. The next prime is 1645514004557. The reversal of 1645514004456 is 6544004155461.

1645514004456 is a `hidden beast` number, since 1 + 6 + 4 + 55 + 140 + 0 + 4 + 456 = 666.

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, 544149945 + ... + 544152968.

It is an arithmetic number, because the mean of its divisors is an integer number (81622718550).

Almost surely, 2^{1645514004456} is an apocalyptic number.

It is an amenable number.

1645514004456 is an abundant number, since it is smaller than the sum of its proper divisors (3578339982744).

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

1645514004456 is a wasteful number, since it uses less digits than its factorization.

1645514004456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088302935 (or 1088302925 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 1645514004456 in words is "one trillion, six hundred forty-five billion, five hundred fourteen million, four thousand, four hundred fifty-six".