20354351446361 has 8 divisors (see below), whose sum is σ = 20619611670240. Its totient is φ = 20089903659232.

The previous prime is 20354351446271. The next prime is 20354351446369. The reversal of 20354351446361 is 16364415345302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20354351446361 - 2¹⁴ = 20354351429977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20354351446369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203058755 + ... + 203158968.

It is an arithmetic number, because the mean of its divisors is an integer number (2577451458780).

Almost surely, 2^{20354351446361} is an apocalyptic number.

It is an amenable number.

20354351446361 is a deficient number, since it is larger than the sum of its proper divisors (265260223879).

20354351446361 is an equidigital number, since it uses as much as digits as its factorization.

20354351446361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406218375.

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 20354351446361 in words is "twenty trillion, three hundred fifty-four billion, three hundred fifty-one million, four hundred forty-six thousand, three hundred sixty-one".