6656261402 has 16 divisors (see below), whose sum is σ = 11429242560. Its totient is φ = 2848056288.

The previous prime is 6656261377. The next prime is 6656261419. The reversal of 6656261402 is 2041626566.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376652 + ... + 393927.

It is an arithmetic number, because the mean of its divisors is an integer number (714327660).

Almost surely, 2^6656261402 is an apocalyptic number.

6656261402 is a deficient number, since it is larger than the sum of its proper divisors (4772981158).

6656261402 is a wasteful number, since it uses less digits than its factorization.

6656261402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771205.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 6656261402 is about 81585.9142376918. The cubic root of 6656261402 is about 1881.0923749981.

Adding to 6656261402 its reverse (2041626566), we get a palindrome (8697887968).

The spelling of 6656261402 in words is "six billion, six hundred fifty-six million, two hundred sixty-one thousand, four hundred two".