2664144635 has 4 divisors (see below), whose sum is σ = 3196973568. Its totient is φ = 2131315704.

The previous prime is 2664144629. The next prime is 2664144649. The reversal of 2664144635 is 5364414662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2664144635 - 2¹⁰ = 2664143611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2664144592 and 2664144601.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266414459 + ... + 266414468.

It is an arithmetic number, because the mean of its divisors is an integer number (799243392).

Almost surely, 2^2664144635 is an apocalyptic number.

2664144635 is a deficient number, since it is larger than the sum of its proper divisors (532828933).

2664144635 is an equidigital number, since it uses as much as digits as its factorization.

2664144635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532828932.

The product of its digits is 414720, while the sum is 41.

The square root of 2664144635 is about 51615.3527063412. The cubic root of 2664144635 is about 1386.2852410367.

The spelling of 2664144635 in words is "two billion, six hundred sixty-four million, one hundred forty-four thousand, six hundred thirty-five".