2165652377 has 8 divisors (see below), whose sum is σ = 2582641536. Its totient is φ = 1775565792.

The previous prime is 2165652371. The next prime is 2165652409. The reversal of 2165652377 is 7732565612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2165652377 - 2²⁴ = 2148875161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2165652371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6725468 + ... + 6725789.

It is an arithmetic number, because the mean of its divisors is an integer number (322830192).

Almost surely, 2^2165652377 is an apocalyptic number.

It is an amenable number.

2165652377 is a deficient number, since it is larger than the sum of its proper divisors (416989159).

2165652377 is a wasteful number, since it uses less digits than its factorization.

2165652377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13451287.

The product of its digits is 529200, while the sum is 44.

The square root of 2165652377 is about 46536.5703184066. The cubic root of 2165652377 is about 1293.7873945892.

The spelling of 2165652377 in words is "two billion, one hundred sixty-five million, six hundred fifty-two thousand, three hundred seventy-seven".