2665162545 has 16 divisors (see below), whose sum is σ = 4266991872. Its totient is φ = 1420509440.

The previous prime is 2665162543. The next prime is 2665162561. The reversal of 2665162545 is 5452615662.

It is a happy number.

It is not a de Polignac number, because 2665162545 - 2¹ = 2665162543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2665162497 and 2665162506.

It is not an unprimeable number, because it can be changed into a prime (2665162543) 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, 32376 + ... + 79865.

It is an arithmetic number, because the mean of its divisors is an integer number (266686992).

Almost surely, 2^2665162545 is an apocalyptic number.

It is an amenable number.

2665162545 is a deficient number, since it is larger than the sum of its proper divisors (1601829327).

2665162545 is a wasteful number, since it uses less digits than its factorization.

2665162545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113832.

The product of its digits is 432000, while the sum is 42.

The square root of 2665162545 is about 51625.2122998056. The cubic root of 2665162545 is about 1386.4617747368.

The spelling of 2665162545 in words is "two billion, six hundred sixty-five million, one hundred sixty-two thousand, five hundred forty-five".