4564651266021 has 32 divisors (see below), whose sum is σ = 7588629651456. Its totient is φ = 2371048056000.

The previous prime is 4564651265989. The next prime is 4564651266103. The reversal of 4564651266021 is 1206621564654.

It is a happy number.

It is not a de Polignac number, because 4564651266021 - 2⁵ = 4564651265989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4564651266421) 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 31 ways as a sum of consecutive naturals, for example, 1942956 + ... + 3592266.

It is an arithmetic number, because the mean of its divisors is an integer number (237144676608).

Almost surely, 2^{4564651266021} is an apocalyptic number.

It is an amenable number.

4564651266021 is a deficient number, since it is larger than the sum of its proper divisors (3023978385435).

4564651266021 is a wasteful number, since it uses less digits than its factorization.

4564651266021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661313.

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 4564651266021 in words is "four trillion, five hundred sixty-four billion, six hundred fifty-one million, two hundred sixty-six thousand, twenty-one".