2045123161472 has 16 divisors (see below), whose sum is σ = 4074268798500. Its totient is φ = 1022561580672.

The previous prime is 2045123161453. The next prime is 2045123161493. The reversal of 2045123161472 is 2741613215402.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-3 number, since 3×2045123161472³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7988762222 + ... + 7988762477.

Almost surely, 2^{2045123161472} is an apocalyptic number.

It is an amenable number.

2045123161472 is a deficient number, since it is larger than the sum of its proper divisors (2029145637028).

2045123161472 is an equidigital number, since it uses as much as digits as its factorization.

2045123161472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15977524713 (or 15977524701 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

Adding to 2045123161472 its reverse (2741613215402), we get a palindrome (4786736376874).

The spelling of 2045123161472 in words is "two trillion, forty-five billion, one hundred twenty-three million, one hundred sixty-one thousand, four hundred seventy-two".