366840136656 has 640 divisors, whose sum is σ = 1325328030720. Its totient is φ = 95939665920.

The previous prime is 366840136613. The next prime is 366840136757. The reversal of 366840136656 is 656631048663.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 154068586 + ... + 154070966.

It is an arithmetic number, because the mean of its divisors is an integer number (2070825048).

Almost surely, 2^366840136656 is an apocalyptic number.

366840136656 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 366840136656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662664015360).

366840136656 is an abundant number, since it is smaller than the sum of its proper divisors (958487894064).

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

366840136656 is a wasteful number, since it uses less digits than its factorization.

366840136656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471 (or 2447 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 54.

The spelling of 366840136656 in words is "three hundred sixty-six billion, eight hundred forty million, one hundred thirty-six thousand, six hundred fifty-six".