866444152148104 has 8 divisors (see below), whose sum is σ = 1624582785277710. Its totient is φ = 433222076074048.

The previous prime is 866444152148011. The next prime is 866444152148171. The reversal of 866444152148104 is 401841251444668.

It can be written as a sum of positive squares in only one way, i.e., 697366091136100 + 169078061012004 = 26407690^2 + 13003002^2 .

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, 54152759509249 + ... + 54152759509264.

Almost surely, 2^{866444152148104} is an apocalyptic number.

It is an amenable number.

866444152148104 is a deficient number, since it is larger than the sum of its proper divisors (758138633129606).

866444152148104 is a wasteful number, since it uses less digits than its factorization.

866444152148104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108305519018519 (or 108305519018515 counting only the distinct ones).

The product of its (nonzero) digits is 23592960, while the sum is 58.

The spelling of 866444152148104 in words is "eight hundred sixty-six trillion, four hundred forty-four billion, one hundred fifty-two million, one hundred forty-eight thousand, one hundred four".