16445501131 has 2 divisors, whose sum is σ = 16445501132. Its totient is φ = 16445501130.

The previous prime is 16445501099. The next prime is 16445501143. The reversal of 16445501131 is 13110554461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16445501131 - 2⁵ = 16445501099 is a prime.

It is a super-2 number, since 2×16445501131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16445501093 and 16445501102.

It is not a weakly prime, because it can be changed into another prime (16445541131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8222750565 + 8222750566.

It is an arithmetic number, because the mean of its divisors is an integer number (8222750566).

Almost surely, 2^16445501131 is an apocalyptic number.

16445501131 is a deficient number, since it is larger than the sum of its proper divisors (1).

16445501131 is an equidigital number, since it uses as much as digits as its factorization.

16445501131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 16445501131 in words is "sixteen billion, four hundred forty-five million, five hundred one thousand, one hundred thirty-one".