2195976341640 has 256 divisors, whose sum is σ = 7118050245120. Its totient is φ = 539912355840.

The previous prime is 2195976341617. The next prime is 2195976341651. The reversal of 2195976341640 is 461436795912.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71451957 + ... + 71482683.

It is an arithmetic number, because the mean of its divisors is an integer number (27804883770).

Almost surely, 2^{2195976341640} is an apocalyptic number.

2195976341640 is a gapful number since it is divisible by the number (20) 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 2195976341640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3559025122560).

2195976341640 is an abundant number, since it is smaller than the sum of its proper divisors (4922073903480).

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

2195976341640 is a wasteful number, since it uses less digits than its factorization.

2195976341640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31472 (or 31468 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 2195976341640 in words is "two trillion, one hundred ninety-five billion, nine hundred seventy-six million, three hundred forty-one thousand, six hundred forty".