122666055541 has 4 divisors (see below), whose sum is σ = 122666807392. Its totient is φ = 122665303692.

The previous prime is 122666055529. The next prime is 122666055557. The reversal of 122666055541 is 145550666221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 122666055541 - 2³⁵ = 88306317173 is a prime.

It is a super-2 number, since 2×122666055541² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122666053541) 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, 16905 + ... + 495598.

It is an arithmetic number, because the mean of its divisors is an integer number (30666701848).

Almost surely, 2^122666055541 is an apocalyptic number.

It is an amenable number.

122666055541 is a deficient number, since it is larger than the sum of its proper divisors (751851).

122666055541 is an equidigital number, since it uses as much as digits as its factorization.

122666055541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751850.

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 122666055541 in words is "one hundred twenty-two billion, six hundred sixty-six million, fifty-five thousand, five hundred forty-one".