9661144962 has 128 divisors (see below), whose sum is σ = 23679226368. Its totient is φ = 2569881600.

The previous prime is 9661144957. The next prime is 9661144967. The reversal of 9661144962 is 2694411669.

It is an interprime number because it is at equal distance from previous prime (9661144957) and next prime (9661144967).

It is not an unprimeable number, because it can be changed into a prime (9661144967) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3375412 + ... + 3378272.

It is an arithmetic number, because the mean of its divisors is an integer number (184993956).

Almost surely, 2^9661144962 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9661144962, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11839613184).

9661144962 is an abundant number, since it is smaller than the sum of its proper divisors (14018081406).

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

9661144962 is a wasteful number, since it uses less digits than its factorization.

9661144962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004.

The product of its digits is 559872, while the sum is 48.

The square root of 9661144962 is about 98291.1235158089. The cubic root of 9661144962 is about 2129.8198295883.

The spelling of 9661144962 in words is "nine billion, six hundred sixty-one million, one hundred forty-four thousand, nine hundred sixty-two".