7648662668466 has 32 divisors (see below), whose sum is σ = 15307071032448. Its totient is φ = 2547930228480.

The previous prime is 7648662668411. The next prime is 7648662668509. The reversal of 7648662668466 is 6648662668467.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130567515 + ... + 130626081.

It is an arithmetic number, because the mean of its divisors is an integer number (478345969764).

Almost surely, 2^{7648662668466} is an apocalyptic number.

7648662668466 is an abundant number, since it is smaller than the sum of its proper divisors (7658408363982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7648662668466 is a wasteful number, since it uses less digits than its factorization.

7648662668466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72066.

The product of its digits is 4013162496, while the sum is 75.

Subtracting from 7648662668466 its reverse (6648662668467), we obtain a palindrome (999999999999).

The spelling of 7648662668466 in words is "seven trillion, six hundred forty-eight billion, six hundred sixty-two million, six hundred sixty-eight thousand, four hundred sixty-six".