654662545266457 has 64 divisors (see below), whose sum is σ = 833171621990400. Its totient is φ = 500713024737024.

The previous prime is 654662545266449. The next prime is 654662545266497. The reversal of 654662545266457 is 754662545266456.

It is a cyclic number.

It is not a de Polignac number, because 654662545266457 - 2³ = 654662545266449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 654662545266457.

It is not an unprimeable number, because it can be changed into a prime (654662545266497) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 71060428 + ... + 79742770.

It is an arithmetic number, because the mean of its divisors is an integer number (13018306593600).

Almost surely, 2^{654662545266457} is an apocalyptic number.

654662545266457 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

654662545266457 is a deficient number, since it is larger than the sum of its proper divisors (178509076723943).

654662545266457 is a wasteful number, since it uses less digits than its factorization.

654662545266457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8682662.

The product of its digits is 8709120000, while the sum is 73.

Subtracting 654662545266457 from its reverse (754662545266456), we obtain a palindrome (99999999999999).

The spelling of 654662545266457 in words is "six hundred fifty-four trillion, six hundred sixty-two billion, five hundred forty-five million, two hundred sixty-six thousand, four hundred fifty-seven".