124240420413666 has 112 divisors (see below), whose sum is σ = 281647252832640. Its totient is φ = 41083280339040.

The previous prime is 124240420413623. The next prime is 124240420413667. The reversal of 124240420413666 is 666314024042421.

It is not an unprimeable number, because it can be changed into a prime (124240420413667) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 128087655 + ... + 129053973.

Almost surely, 2^{124240420413666} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124240420413666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140823626416320).

124240420413666 is an abundant number, since it is smaller than the sum of its proper divisors (157406832418974).

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

124240420413666 is an equidigital number, since it uses as much as digits as its factorization.

124240420413666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967043 (or 967028 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 45.

The spelling of 124240420413666 in words is "one hundred twenty-four trillion, two hundred forty billion, four hundred twenty million, four hundred thirteen thousand, six hundred sixty-six".