2660153665 has 32 divisors (see below), whose sum is σ = 3684231936. Its totient is φ = 1828189440.

The previous prime is 2660153641. The next prime is 2660153689. The reversal of 2660153665 is 5663510662.

It is a happy number.

2660153665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2660153641) and next prime (2660153689).

It is not a de Polignac number, because 2660153665 - 2⁵ = 2660153633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31270 + ... + 79360.

It is an arithmetic number, because the mean of its divisors is an integer number (115132248).

Almost surely, 2^2660153665 is an apocalyptic number.

It is an amenable number.

2660153665 is a deficient number, since it is larger than the sum of its proper divisors (1024078271).

2660153665 is a wasteful number, since it uses less digits than its factorization.

2660153665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48169.

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 2660153665 is about 51576.6775296742. The cubic root of 2660153665 is about 1385.5926625487.

The spelling of 2660153665 in words is "two billion, six hundred sixty million, one hundred fifty-three thousand, six hundred sixty-five".