16231540379 has 2 divisors, whose sum is σ = 16231540380. Its totient is φ = 16231540378.

The previous prime is 16231540361. The next prime is 16231540433. The reversal of 16231540379 is 97304513261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16231540379 - 2⁸ = 16231540123 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16231540309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8115770189 + 8115770190.

It is an arithmetic number, because the mean of its divisors is an integer number (8115770190).

Almost surely, 2^16231540379 is an apocalyptic number.

16231540379 is a deficient number, since it is larger than the sum of its proper divisors (1).

16231540379 is an equidigital number, since it uses as much as digits as its factorization.

16231540379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 41.

The spelling of 16231540379 in words is "sixteen billion, two hundred thirty-one million, five hundred forty thousand, three hundred seventy-nine".