618446340166 has 16 divisors (see below), whose sum is σ = 941946195456. Its totient is φ = 304498885576.

The previous prime is 618446340137. The next prime is 618446340167. The reversal of 618446340166 is 661043644816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618446340167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8616766 + ... + 8688241.

It is an arithmetic number, because the mean of its divisors is an integer number (58871637216).

Almost surely, 2^618446340166 is an apocalyptic number.

618446340166 is a deficient number, since it is larger than the sum of its proper divisors (323499855290).

618446340166 is a wasteful number, since it uses less digits than its factorization.

618446340166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17305283.

The product of its (nonzero) digits is 1990656, while the sum is 49.

The spelling of 618446340166 in words is "six hundred eighteen billion, four hundred forty-six million, three hundred forty thousand, one hundred sixty-six".