2665205430 has 64 divisors (see below), whose sum is σ = 7129244160. Its totient is φ = 633705984.

The previous prime is 2665205429. The next prime is 2665205441. The reversal of 2665205430 is 345025662.

It is a junction number, because it is equal to n+sod(n) for n = 2665205391 and 2665205400.

It is a congruent 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, 127834 + ... + 147213.

It is an arithmetic number, because the mean of its divisors is an integer number (111394440).

Almost surely, 2^2665205430 is an apocalyptic number.

2665205430 is an abundant number, since it is smaller than the sum of its proper divisors (4464038730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2665205430 is a wasteful number, since it uses less digits than its factorization.

2665205430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275093.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 2665205430 is about 51625.6276475163. The cubic root of 2665205430 is about 1386.4692111930.

The spelling of 2665205430 in words is "two billion, six hundred sixty-five million, two hundred five thousand, four hundred thirty".