1641335343372 has 144 divisors (see below), whose sum is σ = 4245539844000. Its totient is φ = 534493790208.

The previous prime is 1641335343371. The next prime is 1641335343407. The reversal of 1641335343372 is 2733435331461.

It is a happy number.

1641335343372 is a `hidden beast` number, since 1 + 6 + 4 + 13 + 3 + 534 + 33 + 72 = 666.

It is a super-2 number, since 2×1641335343372² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1641335343371) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 610387404 + ... + 610390092.

Almost surely, 2^{1641335343372} is an apocalyptic number.

1641335343372 is a gapful number since it is divisible by the number (12) 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 1641335343372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2122769922000).

1641335343372 is an abundant number, since it is smaller than the sum of its proper divisors (2604204500628).

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

1641335343372 is a wasteful number, since it uses less digits than its factorization.

1641335343372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4440 (or 4435 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 45.

The spelling of 1641335343372 in words is "one trillion, six hundred forty-one billion, three hundred thirty-five million, three hundred forty-three thousand, three hundred seventy-two".