366661645400 has 192 divisors, whose sum is σ = 886790860800. Its totient is φ = 140874370560.

The previous prime is 366661645397. The next prime is 366661645423. The reversal of 366661645400 is 4546166663.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

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, 352898081 + ... + 352899119.

It is an arithmetic number, because the mean of its divisors is an integer number (4618702400).

Almost surely, 2^366661645400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 366661645400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443395430400).

366661645400 is an abundant number, since it is smaller than the sum of its proper divisors (520129215400).

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

366661645400 is a wasteful number, since it uses less digits than its factorization.

366661645400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658 (or 1649 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 366661645400 in words is "three hundred sixty-six billion, six hundred sixty-one million, six hundred forty-five thousand, four hundred".