650161101000 has 128 divisors (see below), whose sum is σ = 2029697429760. Its totient is φ = 173274176000.

The previous prime is 650161100977. The next prime is 650161101001. The reversal of 650161101000 is 101161056.

It is a super-3 number, since 3×650161101000³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (650161101001) 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, 5100037 + ... + 5225963.

It is an arithmetic number, because the mean of its divisors is an integer number (15857011170).

Almost surely, 2^650161101000 is an apocalyptic number.

650161101000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650161101000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1014848714880).

650161101000 is an abundant number, since it is smaller than the sum of its proper divisors (1379536328760).

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

650161101000 is a wasteful number, since it uses less digits than its factorization.

650161101000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127672 (or 127658 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 21.

Adding to 650161101000 its reverse (101161056), we get a palindrome (650262262056).

The spelling of 650161101000 in words is "six hundred fifty billion, one hundred sixty-one million, one hundred one thousand".