650442620165 has 16 divisors (see below), whose sum is σ = 841975344000. Its totient is φ = 479524948032.

The previous prime is 650442620159. The next prime is 650442620197. The reversal of 650442620165 is 561026244056.

It is not a de Polignac number, because 650442620165 - 2¹⁸ = 650442358021 is a prime.

It is a super-3 number, since 3×650442620165³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8313995 + ... + 8391864.

It is an arithmetic number, because the mean of its divisors is an integer number (52623459000).

Almost surely, 2^650442620165 is an apocalyptic number.

650442620165 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

650442620165 is a deficient number, since it is larger than the sum of its proper divisors (191532723835).

650442620165 is a wasteful number, since it uses less digits than its factorization.

650442620165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16706476.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 650442620165 in words is "six hundred fifty billion, four hundred forty-two million, six hundred twenty thousand, one hundred sixty-five".