3161506240000 has 200 divisors, whose sum is σ = 7898995637280. Its totient is φ = 1263725568000.

The previous prime is 3161506239973. The next prime is 3161506240003. The reversal of 3161506240000 is 426051613.

It is a tau number, because it is divible by the number of its divisors (200).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3161506240003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 660157606 + ... + 660162394.

Almost surely, 2^{3161506240000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3161506240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3949497818640).

3161506240000 is an abundant number, since it is smaller than the sum of its proper divisors (4737489397280).

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

3161506240000 is an frugal number, since it uses more digits than its factorization.

3161506240000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6890 (or 6859 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 3161506240000 in words is "three trillion, one hundred sixty-one billion, five hundred six million, two hundred forty thousand".