16451641331 has 8 divisors (see below), whose sum is σ = 16768083024. Its totient is φ = 16135423200.

The previous prime is 16451641309. The next prime is 16451641351. The reversal of 16451641331 is 13314615461.

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 16451641331 - 2¹⁸ = 16451379187 is a prime.

It is a super-2 number, since 2×16451641331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16451641291 and 16451641300.

It is not an unprimeable number, because it can be changed into a prime (16451641351) 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, 96665 + ... + 205541.

It is an arithmetic number, because the mean of its divisors is an integer number (2096010378).

Almost surely, 2^16451641331 is an apocalyptic number.

16451641331 is a deficient number, since it is larger than the sum of its proper divisors (316441693).

16451641331 is a wasteful number, since it uses less digits than its factorization.

16451641331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111781.

The product of its digits is 25920, while the sum is 35.

The spelling of 16451641331 in words is "sixteen billion, four hundred fifty-one million, six hundred forty-one thousand, three hundred thirty-one".