366665640136 has 8 divisors (see below), whose sum is σ = 687498075270. Its totient is φ = 183332820064.

The previous prime is 366665640097. The next prime is 366665640149. The reversal of 366665640136 is 631046566663.

It can be written as a sum of positive squares in only one way, i.e., 351660860100 + 15004780036 = 593010^2 + 122494^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22916602501 + ... + 22916602516.

Almost surely, 2^366665640136 is an apocalyptic number.

It is an amenable number.

366665640136 is a deficient number, since it is larger than the sum of its proper divisors (320832435134).

366665640136 is a wasteful number, since it uses less digits than its factorization.

366665640136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45833205023 (or 45833205019 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 52.

The spelling of 366665640136 in words is "three hundred sixty-six billion, six hundred sixty-five million, six hundred forty thousand, one hundred thirty-six".