122660013405 has 48 divisors (see below), whose sum is σ = 198336547584. Its totient is φ = 64732039680.

The previous prime is 122660013397. The next prime is 122660013431. The reversal of 122660013405 is 504310066221.

It is not a de Polignac number, because 122660013405 - 2³ = 122660013397 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 130350235 + ... + 130351175.

It is an arithmetic number, because the mean of its divisors is an integer number (4132011408).

Almost surely, 2^122660013405 is an apocalyptic number.

122660013405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122660013405 is a deficient number, since it is larger than the sum of its proper divisors (75676534179).

122660013405 is an equidigital number, since it uses as much as digits as its factorization.

122660013405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686 (or 1549 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 122660013405 its reverse (504310066221), we get a palindrome (626970079626).

The spelling of 122660013405 in words is "one hundred twenty-two billion, six hundred sixty million, thirteen thousand, four hundred five".