122553660427 has 8 divisors (see below), whose sum is σ = 133705138752. Its totient is φ = 111403888200.

The previous prime is 122553660421. The next prime is 122553660443. The reversal of 122553660427 is 724066355221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-122553660427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122553660421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273949 + ... + 565822.

It is an arithmetic number, because the mean of its divisors is an integer number (16713142344).

Almost surely, 2^122553660427 is an apocalyptic number.

122553660427 is a deficient number, since it is larger than the sum of its proper divisors (11151478325).

122553660427 is a wasteful number, since it uses less digits than its factorization.

122553660427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853049.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 122553660427 in words is "one hundred twenty-two billion, five hundred fifty-three million, six hundred sixty thousand, four hundred twenty-seven".