16506146231 has 2 divisors, whose sum is σ = 16506146232. Its totient is φ = 16506146230.

The previous prime is 16506146219. The next prime is 16506146287. The reversal of 16506146231 is 13264160561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16506146231 - 2²² = 16501951927 is a prime.

It is a super-3 number, since 3×16506146231³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 16506146191 and 16506146200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16506146201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8253073115 + 8253073116.

It is an arithmetic number, because the mean of its divisors is an integer number (8253073116).

Almost surely, 2^16506146231 is an apocalyptic number.

16506146231 is a deficient number, since it is larger than the sum of its proper divisors (1).

16506146231 is an equidigital number, since it uses as much as digits as its factorization.

16506146231 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 16506146231 in words is "sixteen billion, five hundred six million, one hundred forty-six thousand, two hundred thirty-one".