662311251655 has 4 divisors (see below), whose sum is σ = 794773501992. Its totient is φ = 529849001320.

The previous prime is 662311251629. The next prime is 662311251731. The reversal of 662311251655 is 556152113266.

It is a happy number.

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

It is not a de Polignac number, because 662311251655 - 2⁹ = 662311251143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66231125161 + ... + 66231125170.

It is an arithmetic number, because the mean of its divisors is an integer number (198693375498).

Almost surely, 2^662311251655 is an apocalyptic number.

662311251655 is a deficient number, since it is larger than the sum of its proper divisors (132462250337).

662311251655 is a wasteful number, since it uses less digits than its factorization.

662311251655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132462250336.

The product of its digits is 324000, while the sum is 43.

The spelling of 662311251655 in words is "six hundred sixty-two billion, three hundred eleven million, two hundred fifty-one thousand, six hundred fifty-five".