662628337655 has 4 divisors (see below), whose sum is σ = 795154005192. Its totient is φ = 530102670120.

The previous prime is 662628337633. The next prime is 662628337681. The reversal of 662628337655 is 556733826266.

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

It is a de Polignac number, because none of the positive numbers 2^k-662628337655 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 662628337594 and 662628337603.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 66262833761 + ... + 66262833770.

It is an arithmetic number, because the mean of its divisors is an integer number (198788501298).

Almost surely, 2^662628337655 is an apocalyptic number.

662628337655 is a deficient number, since it is larger than the sum of its proper divisors (132525667537).

662628337655 is a wasteful number, since it uses less digits than its factorization.

662628337655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132525667536.

The product of its digits is 65318400, while the sum is 59.

The spelling of 662628337655 in words is "six hundred sixty-two billion, six hundred twenty-eight million, three hundred thirty-seven thousand, six hundred fifty-five".