122666406432240 has 160 divisors (see below), whose sum is σ = 414839457432576. Its totient is φ = 29737025786880.

The previous prime is 122666406432223. The next prime is 122666406432247. The reversal of 122666406432240 is 42234604666221.

It is a super-2 number, since 2×122666406432240² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 122666406432240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122666406432247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 441261129 + ... + 441539031.

Almost surely, 2^{122666406432240} is an apocalyptic number.

122666406432240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122666406432240 is an abundant number, since it is smaller than the sum of its proper divisors (292173051000336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122666406432240 is a wasteful number, since it uses less digits than its factorization.

122666406432240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445127 (or 445121 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 48.

The spelling of 122666406432240 in words is "one hundred twenty-two trillion, six hundred sixty-six billion, four hundred six million, four hundred thirty-two thousand, two hundred forty".