662664455 has 4 divisors (see below), whose sum is σ = 795197352. Its totient is φ = 530131560.

The previous prime is 662664451. The next prime is 662664461. The reversal of 662664455 is 554466266.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 554466266 = 2 ⋅277233133.

It is not a de Polignac number, because 662664455 - 2² = 662664451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662664451) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 66266441 + ... + 66266450.

It is an arithmetic number, because the mean of its divisors is an integer number (198799338).

Almost surely, 2^662664455 is an apocalyptic number.

662664455 is a deficient number, since it is larger than the sum of its proper divisors (132532897).

662664455 is a wasteful number, since it uses less digits than its factorization.

662664455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132532896.

The product of its digits is 1036800, while the sum is 44.

The square root of 662664455 is about 25742.2698105664. The cubic root of 662664455 is about 871.8288278714.

The spelling of 662664455 in words is "six hundred sixty-two million, six hundred sixty-four thousand, four hundred fifty-five".