2660436285 has 32 divisors (see below), whose sum is σ = 4612315008. Its totient is φ = 1301702400.

The previous prime is 2660436257. The next prime is 2660436293. The reversal of 2660436285 is 5826340662.

It is a happy number.

2660436285 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2660436285 - 2⁹ = 2660435773 is a prime.

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, 10066 + ... + 73635.

It is an arithmetic number, because the mean of its divisors is an integer number (144134844).

Almost surely, 2^2660436285 is an apocalyptic number.

It is an amenable number.

2660436285 is a deficient number, since it is larger than the sum of its proper divisors (1951878723).

2660436285 is a wasteful number, since it uses less digits than its factorization.

2660436285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83885.

The product of its (nonzero) digits is 414720, while the sum is 42.

The square root of 2660436285 is about 51579.4172611518. The cubic root of 2660436285 is about 1385.6417301817.

The spelling of 2660436285 in words is "two billion, six hundred sixty million, four hundred thirty-six thousand, two hundred eighty-five".