20352456321451 has 8 divisors (see below), whose sum is σ = 20420966592000. Its totient is φ = 20283965720040.

The previous prime is 20352456321383. The next prime is 20352456321469. The reversal of 20352456321451 is 15412365425302.

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 20352456321451 - 2⁹ = 20352456320939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20352456321398 and 20352456321407.

It is not an unprimeable number, because it can be changed into a prime (20352456325451) 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, 2842851 + ... + 6984748.

It is an arithmetic number, because the mean of its divisors is an integer number (2552620824000).

Almost surely, 2^{20352456321451} is an apocalyptic number.

20352456321451 is a deficient number, since it is larger than the sum of its proper divisors (68510270549).

20352456321451 is an equidigital number, since it uses as much as digits as its factorization.

20352456321451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9834569.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 20352456321451 in words is "twenty trillion, three hundred fifty-two billion, four hundred fifty-six million, three hundred twenty-one thousand, four hundred fifty-one".