16121042471 has 2 divisors, whose sum is σ = 16121042472. Its totient is φ = 16121042470.

The previous prime is 16121042467. The next prime is 16121042573. The reversal of 16121042471 is 17424012161.

It is a happy number.

16121042471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16121042471 - 2² = 16121042467 is a prime.

It is a super-3 number, since 3×16121042471³ (a number of 32 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16121042411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8060521235 + 8060521236.

It is an arithmetic number, because the mean of its divisors is an integer number (8060521236).

Almost surely, 2^16121042471 is an apocalyptic number.

16121042471 is a deficient number, since it is larger than the sum of its proper divisors (1).

16121042471 is an equidigital number, since it uses as much as digits as its factorization.

16121042471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 29.

The spelling of 16121042471 in words is "sixteen billion, one hundred twenty-one million, forty-two thousand, four hundred seventy-one".