122653596815 has 4 divisors (see below), whose sum is σ = 147184316184. Its totient is φ = 98122877448.

The previous prime is 122653596811. The next prime is 122653596851. The reversal of 122653596815 is 518695356221.

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

It is a cyclic number.

It is not a de Polignac number, because 122653596815 - 2² = 122653596811 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 (122653596811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12265359677 + ... + 12265359686.

It is an arithmetic number, because the mean of its divisors is an integer number (36796079046).

Almost surely, 2^122653596815 is an apocalyptic number.

122653596815 is a deficient number, since it is larger than the sum of its proper divisors (24530719369).

122653596815 is an equidigital number, since it uses as much as digits as its factorization.

122653596815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24530719368.

The product of its digits is 3888000, while the sum is 53.

The spelling of 122653596815 in words is "one hundred twenty-two billion, six hundred fifty-three million, five hundred ninety-six thousand, eight hundred fifteen".