2045166123 has 32 divisors (see below), whose sum is σ = 3661281792. Its totient is φ = 980697600.

The previous prime is 2045166119. The next prime is 2045166133. The reversal of 2045166123 is 3216615402.

It is not a de Polignac number, because 2045166123 - 2² = 2045166119 is a prime.

It is a super-2 number, since 2×2045166123² = 8365408941333702258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2045166133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 337518 + ... + 343523.

It is an arithmetic number, because the mean of its divisors is an integer number (114415056).

Almost surely, 2^2045166123 is an apocalyptic number.

2045166123 is a deficient number, since it is larger than the sum of its proper divisors (1616115669).

2045166123 is a wasteful number, since it uses less digits than its factorization.

2045166123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681075.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2045166123 is about 45223.5129440427. The cubic root of 2045166123 is about 1269.3348290968.

The spelling of 2045166123 in words is "two billion, forty-five million, one hundred sixty-six thousand, one hundred twenty-three".