1995997363140 has 192 divisors, whose sum is σ = 6232398842880. Its totient is φ = 473225448960.

The previous prime is 1995997363111. The next prime is 1995997363159. The reversal of 1995997363140 is 413637995991.

It is a super-4 number, since 4×1995997363140⁴ (a number of 50 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5984214 + ... + 6308946.

It is an arithmetic number, because the mean of its divisors is an integer number (32460410640).

Almost surely, 2^{1995997363140} is an apocalyptic number.

1995997363140 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 1995997363140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3116199421440).

1995997363140 is an abundant number, since it is smaller than the sum of its proper divisors (4236401479740).

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

1995997363140 is a wasteful number, since it uses less digits than its factorization.

1995997363140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324962 (or 324960 counting only the distinct ones).

The product of its (nonzero) digits is 49601160, while the sum is 66.

The spelling of 1995997363140 in words is "one trillion, nine hundred ninety-five billion, nine hundred ninety-seven million, three hundred sixty-three thousand, one hundred forty".