2660662545 has 16 divisors (see below), whose sum is σ = 4259250240. Its totient is φ = 1418289984.

The previous prime is 2660662541. The next prime is 2660662577. The reversal of 2660662545 is 5452660662.

It is not a de Polignac number, because 2660662545 - 2² = 2660662541 is a prime.

It is a super-3 number, since 3×2660662545³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2660662497 and 2660662506.

It is not an unprimeable number, because it can be changed into a prime (2660662541) 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 15 ways as a sum of consecutive naturals, for example, 14830 + ... + 74439.

It is an arithmetic number, because the mean of its divisors is an integer number (266203140).

Almost surely, 2^2660662545 is an apocalyptic number.

It is an amenable number.

2660662545 is a deficient number, since it is larger than the sum of its proper divisors (1598587695).

2660662545 is a wasteful number, since it uses less digits than its factorization.

2660662545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91264.

The product of its (nonzero) digits is 518400, while the sum is 42.

The square root of 2660662545 is about 51581.6105312736. The cubic root of 2660662545 is about 1385.6810102567.

The spelling of 2660662545 in words is "two billion, six hundred sixty million, six hundred sixty-two thousand, five hundred forty-five".