659441771426642 has 16 divisors (see below), whose sum is σ = 989355228523200. Its totient is φ = 329656700733360.

The previous prime is 659441771426629. The next prime is 659441771426693. The reversal of 659441771426642 is 246624177144956.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241352909 + ... + 244069887.

It is an arithmetic number, because the mean of its divisors is an integer number (61834701782700).

Almost surely, 2^{659441771426642} is an apocalyptic number.

659441771426642 is a deficient number, since it is larger than the sum of its proper divisors (329913457096558).

659441771426642 is a wasteful number, since it uses less digits than its factorization.

659441771426642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740561.

The product of its digits is 487710720, while the sum is 68.

The spelling of 659441771426642 in words is "six hundred fifty-nine trillion, four hundred forty-one billion, seven hundred seventy-one million, four hundred twenty-six thousand, six hundred forty-two".