1995013041840 has 800 divisors, whose sum is σ = 8560353352320. Its totient is φ = 419327705088.

The previous prime is 1995013041821. The next prime is 1995013041841. The reversal of 1995013041840 is 481403105991.

1995013041840 is a `hidden beast` number, since 1 + 99 + 501 + 3 + 0 + 4 + 18 + 40 = 666.

It is a super-2 number, since 2×1995013041840² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1995013041841) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 158617632 + ... + 158630208.

Almost surely, 2^{1995013041840} is an apocalyptic number.

1995013041840 is a gapful number since it is divisible by the number (10) 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 1995013041840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4280176676160).

1995013041840 is an abundant number, since it is smaller than the sum of its proper divisors (6565340310480).

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

1995013041840 is a wasteful number, since it uses less digits than its factorization.

1995013041840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12891 (or 12876 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 1995013041840 in words is "one trillion, nine hundred ninety-five billion, thirteen million, forty-one thousand, eight hundred forty".