6642665035 has 16 divisors (see below), whose sum is σ = 8248508640. Its totient is φ = 5129367040.

The previous prime is 6642664981. The next prime is 6642665129. The reversal of 6642665035 is 5305662466.

It is not a de Polignac number, because 6642665035 - 2²¹ = 6640567883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6642664982 and 6642665000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 917580 + ... + 924790.

It is an arithmetic number, because the mean of its divisors is an integer number (515531790).

Almost surely, 2^6642665035 is an apocalyptic number.

6642665035 is a deficient number, since it is larger than the sum of its proper divisors (1605843605).

6642665035 is a wasteful number, since it uses less digits than its factorization.

6642665035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13598.

The product of its (nonzero) digits is 777600, while the sum is 43.

The square root of 6642665035 is about 81502.5461872204. The cubic root of 6642665035 is about 1879.8107017602.

The spelling of 6642665035 in words is "six billion, six hundred forty-two million, six hundred sixty-five thousand, thirty-five".