650360081856642 has 64 divisors (see below), whose sum is σ = 1302337744456320. Its totient is φ = 216517347938304.

The previous prime is 650360081856523. The next prime is 650360081856647. The reversal of 650360081856642 is 246658180063056.

It is not an unprimeable number, because it can be changed into a prime (650360081856647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181007535598 + ... + 181007539190.

It is an arithmetic number, because the mean of its divisors is an integer number (20349027257130).

Almost surely, 2^{650360081856642} is an apocalyptic number.

650360081856642 is an abundant number, since it is smaller than the sum of its proper divisors (651977662599678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

650360081856642 is a wasteful number, since it uses less digits than its factorization.

650360081856642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12947.

The product of its (nonzero) digits is 49766400, while the sum is 60.

The spelling of 650360081856642 in words is "six hundred fifty trillion, three hundred sixty billion, eighty-one million, eight hundred fifty-six thousand, six hundred forty-two".