656016454655 has 16 divisors (see below), whose sum is σ = 833545792800. Its totient is φ = 493930540032.

The previous prime is 656016454619. The next prime is 656016454693. The reversal of 656016454655 is 556454610656.

It is a cyclic number.

It is not a de Polignac number, because 656016454655 - 2¹⁴ = 656016438271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 656016454597 and 656016454606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7030496 + ... + 7123194.

It is an arithmetic number, because the mean of its divisors is an integer number (52096612050).

Almost surely, 2^656016454655 is an apocalyptic number.

656016454655 is a deficient number, since it is larger than the sum of its proper divisors (177529338145).

656016454655 is a wasteful number, since it uses less digits than its factorization.

656016454655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175978.

The product of its (nonzero) digits is 12960000, while the sum is 53.

It can be divided in two parts, 65601 and 6454655, that added together give a palindrome (6520256).

The spelling of 656016454655 in words is "six hundred fifty-six billion, sixteen million, four hundred fifty-four thousand, six hundred fifty-five".