16451372434611 has 4 divisors (see below), whose sum is σ = 21935163246152. Its totient is φ = 10967581623072.

The previous prime is 16451372434447. The next prime is 16451372434613. The reversal of 16451372434611 is 11643427315461.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16451372434611 - 2²³ = 16451364046003 is a prime.

It is a super-2 number, since 2×16451372434611² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16451372434613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2741895405766 + ... + 2741895405771.

It is an arithmetic number, because the mean of its divisors is an integer number (5483790811538).

Almost surely, 2^{16451372434611} is an apocalyptic number.

16451372434611 is a deficient number, since it is larger than the sum of its proper divisors (5483790811541).

16451372434611 is an equidigital number, since it uses as much as digits as its factorization.

16451372434611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5483790811540.

The product of its digits is 1451520, while the sum is 48.

The spelling of 16451372434611 in words is "sixteen trillion, four hundred fifty-one billion, three hundred seventy-two million, four hundred thirty-four thousand, six hundred eleven".