16352453643 has 8 divisors (see below), whose sum is σ = 21803862528. Its totient is φ = 10901340264.

The previous prime is 16352453609. The next prime is 16352453729. The reversal of 16352453643 is 34635425361.

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

It is a de Polignac number, because none of the positive numbers 2^k-16352453643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16352453595 and 16352453604.

It is not an unprimeable number, because it can be changed into a prime (16350453643) 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, 175630 + ... + 252092.

It is an arithmetic number, because the mean of its divisors is an integer number (2725482816).

Almost surely, 2^16352453643 is an apocalyptic number.

16352453643 is a deficient number, since it is larger than the sum of its proper divisors (5451408885).

16352453643 is an equidigital number, since it uses as much as digits as its factorization.

16352453643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147753.

The product of its digits is 777600, while the sum is 42.

The spelling of 16352453643 in words is "sixteen billion, three hundred fifty-two million, four hundred fifty-three thousand, six hundred forty-three".