20344331641356 has 72 divisors (see below), whose sum is σ = 54462029154624. Its totient is φ = 6381243240960.

The previous prime is 20344331641331. The next prime is 20344331641357. The reversal of 20344331641356 is 65314613344302.

20344331641356 is a `hidden beast` number, since 2 + 0 + 3 + 4 + 433 + 164 + 1 + 3 + 56 = 666.

It is a super-3 number, since 3×20344331641356³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20344331641357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 337455 + ... + 6387686.

It is an arithmetic number, because the mean of its divisors is an integer number (756417071592).

Almost surely, 2^{20344331641356} is an apocalyptic number.

It is an amenable number.

20344331641356 is an abundant number, since it is smaller than the sum of its proper divisors (34117697513268).

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

20344331641356 is a wasteful number, since it uses less digits than its factorization.

20344331641356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6730111 (or 6730106 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 45.

Adding to 20344331641356 its reverse (65314613344302), we get a palindrome (85658944985658).

The spelling of 20344331641356 in words is "twenty trillion, three hundred forty-four billion, three hundred thirty-one million, six hundred forty-one thousand, three hundred fifty-six".