2045161877 has 16 divisors (see below), whose sum is σ = 2306525760. Its totient is φ = 1797206400.

The previous prime is 2045161861. The next prime is 2045161889. The reversal of 2045161877 is 7781615402.

It is not a de Polignac number, because 2045161877 - 2⁴ = 2045161861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045161847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28358 + ... + 69960.

It is an arithmetic number, because the mean of its divisors is an integer number (144157860).

Almost surely, 2^2045161877 is an apocalyptic number.

It is an amenable number.

2045161877 is a deficient number, since it is larger than the sum of its proper divisors (261363883).

2045161877 is a wasteful number, since it uses less digits than its factorization.

2045161877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41764.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 2045161877 is about 45223.4659994123. The cubic root of 2045161877 is about 1269.3339506679. Note that the first 3 decimals are identical.

It can be divided in two parts, 20451 and 61877, that added together give a palindrome (82328).

The spelling of 2045161877 in words is "two billion, forty-five million, one hundred sixty-one thousand, eight hundred seventy-seven".