3161487651840 has 1584 divisors, whose sum is σ = 13447872681984. Its totient is φ = 684436193280.

The previous prime is 3161487651683. The next prime is 3161487651853. The reversal of 3161487651840 is 481567841613.

3161487651840 is a `hidden beast` number, since 3 + 1 + 6 + 1 + 4 + 87 + 6 + 518 + 40 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 67265694697 + ... + 67265694743.

Almost surely, 2^{3161487651840} is an apocalyptic number.

3161487651840 is a gapful number since it is divisible by the number (30) 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 3161487651840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6723936340992).

3161487651840 is an abundant number, since it is smaller than the sum of its proper divisors (10286385030144).

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

3161487651840 is an equidigital number, since it uses as much as digits as its factorization.

3161487651840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 3161487651840 in words is "three trillion, one hundred sixty-one billion, four hundred eighty-seven million, six hundred fifty-one thousand, eight hundred forty".