6468610168646 has 4 divisors (see below), whose sum is σ = 9702915252972. Its totient is φ = 3234305084322.

The previous prime is 6468610168639. The next prime is 6468610168693.

6468610168646 is nontrivially palindromic in base 10.

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

It is a super-2 number, since 2×6468610168646² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1617152542160 + ... + 1617152542163.

It is an arithmetic number, because the mean of its divisors is an integer number (2425728813243).

Almost surely, 2^{6468610168646} is an apocalyptic number.

6468610168646 is a deficient number, since it is larger than the sum of its proper divisors (3234305084326).

6468610168646 is a wasteful number, since it uses less digits than its factorization.

6468610168646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234305084325.

The product of its (nonzero) digits is 47775744, while the sum is 62.

The spelling of 6468610168646 in words is "six trillion, four hundred sixty-eight billion, six hundred ten million, one hundred sixty-eight thousand, six hundred forty-six".