2045072554456 has 16 divisors (see below), whose sum is σ = 3840474519000. Its totient is φ = 1020946016064.

The previous prime is 2045072554451. The next prime is 2045072554477. The reversal of 2045072554456 is 6544552705402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045072554451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198777181 + ... + 198787468.

Almost surely, 2^{2045072554456} is an apocalyptic number.

It is an amenable number.

2045072554456 is a deficient number, since it is larger than the sum of its proper divisors (1795401964544).

2045072554456 is a wasteful number, since it uses less digits than its factorization.

2045072554456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397565298 (or 397565294 counting only the distinct ones).

The product of its (nonzero) digits is 6720000, while the sum is 49.

The spelling of 2045072554456 in words is "two trillion, forty-five billion, seventy-two million, five hundred fifty-four thousand, four hundred fifty-six".