2045111271765 has 16 divisors (see below), whose sum is σ = 3464659096128. Its totient is φ = 1026565657856.

The previous prime is 2045111271713. The next prime is 2045111271871. The reversal of 2045111271765 is 5671721115402.

It is not a de Polignac number, because 2045111271765 - 2¹⁴ = 2045111255381 is a prime.

It is a super-2 number, since 2×2045111271765² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4010021847 + ... + 4010022356.

It is an arithmetic number, because the mean of its divisors is an integer number (216541193508).

Almost surely, 2^{2045111271765} is an apocalyptic number.

It is an amenable number.

2045111271765 is a deficient number, since it is larger than the sum of its proper divisors (1419547824363).

2045111271765 is a wasteful number, since it uses less digits than its factorization.

2045111271765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8020044228.

The product of its (nonzero) digits is 117600, while the sum is 42.

The spelling of 2045111271765 in words is "two trillion, forty-five billion, one hundred eleven million, two hundred seventy-one thousand, seven hundred sixty-five".