366628121980 has 24 divisors (see below), whose sum is σ = 786300314688. Its totient is φ = 143531009088.

The previous prime is 366628121947. The next prime is 366628121983. The reversal of 366628121980 is 89121826663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366628121983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195014019 + ... + 195015898.

It is an arithmetic number, because the mean of its divisors is an integer number (32762513112).

Almost surely, 2^366628121980 is an apocalyptic number.

It is an amenable number.

366628121980 is an abundant number, since it is smaller than the sum of its proper divisors (419672192708).

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

366628121980 is a wasteful number, since it uses less digits than its factorization.

366628121980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390029973 (or 390029971 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 366628121980 in words is "three hundred sixty-six billion, six hundred twenty-eight million, one hundred twenty-one thousand, nine hundred eighty".