4565121214655 has 4 divisors (see below), whose sum is σ = 5478145457592. Its totient is φ = 3652096971720.

The previous prime is 4565121214627. The next prime is 4565121214681. The reversal of 4565121214655 is 5564121215654.

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

It is not a de Polignac number, because 4565121214655 - 2¹⁶ = 4565121149119 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, 456512121461 + ... + 456512121470.

It is an arithmetic number, because the mean of its divisors is an integer number (1369536364398).

Almost surely, 2^{4565121214655} is an apocalyptic number.

4565121214655 is a deficient number, since it is larger than the sum of its proper divisors (913024242937).

4565121214655 is an equidigital number, since it uses as much as digits as its factorization.

4565121214655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913024242936.

The product of its digits is 1440000, while the sum is 47.

Subtracting 4565121214655 from its reverse (5564121215654), we obtain a palindrome (999000000999).

The spelling of 4565121214655 in words is "four trillion, five hundred sixty-five billion, one hundred twenty-one million, two hundred fourteen thousand, six hundred fifty-five".