122345555679 has 14 divisors (see below), whose sum is σ = 183434421336. Its totient is φ = 81563703300.

The previous prime is 122345555677. The next prime is 122345555693. The reversal of 122345555679 is 976555543221.

122345555679 is a `hidden beast` number, since 1 + 2 + 2 + 34 + 55 + 556 + 7 + 9 = 666.

It is not a de Polignac number, because 122345555679 - 2¹ = 122345555677 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122345555677) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 83912547 + ... + 83914004.

Almost surely, 2^122345555679 is an apocalyptic number.

122345555679 is a deficient number, since it is larger than the sum of its proper divisors (61088865657).

122345555679 is an frugal number, since it uses more digits than its factorization.

122345555679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167826569 (or 167826554 counting only the distinct ones).

The product of its digits is 11340000, while the sum is 54.

The spelling of 122345555679 in words is "one hundred twenty-two billion, three hundred forty-five million, five hundred fifty-five thousand, six hundred seventy-nine".