665486596418 has 32 divisors (see below), whose sum is σ = 1144406169984. Its totient is φ = 284316625152.

The previous prime is 665486596367. The next prime is 665486596433. The reversal of 665486596418 is 814695684566.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7454321 + ... + 7543067.

It is an arithmetic number, because the mean of its divisors is an integer number (35762692812).

Almost surely, 2^665486596418 is an apocalyptic number.

665486596418 is a deficient number, since it is larger than the sum of its proper divisors (478919573566).

665486596418 is a wasteful number, since it uses less digits than its factorization.

665486596418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90426.

The product of its digits is 298598400, while the sum is 68.

The spelling of 665486596418 in words is "six hundred sixty-five billion, four hundred eighty-six million, five hundred ninety-six thousand, four hundred eighteen".