9571161600000 has 3744 divisors, whose sum is σ = 46955997623808. Its totient is φ = 1813708800000.

The previous prime is 9571161599981. The next prime is 9571161600019. The reversal of 9571161600000 is 61611759.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9571161599981) and next prime (9571161600019).

It is a tau number, because it is divible by the number of its divisors (3744).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 115315199959 + ... + 115315200041.

It is an arithmetic number, because the mean of its divisors is an integer number (12541666032).

Almost surely, 2^{9571161600000} is an apocalyptic number.

9571161600000 is a gapful number since it is divisible by the number (90) 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 9571161600000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23477998811904).

9571161600000 is an abundant number, since it is smaller than the sum of its proper divisors (37384836023808).

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

9571161600000 is a wasteful number, since it uses less digits than its factorization.

9571161600000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The spelling of 9571161600000 in words is "nine trillion, five hundred seventy-one billion, one hundred sixty-one million, six hundred thousand".