16001403625127 has 2 divisors, whose sum is σ = 16001403625128. Its totient is φ = 16001403625126.

The previous prime is 16001403625121. The next prime is 16001403625201. The reversal of 16001403625127 is 72152630410061.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16001403625127 - 2²⁴ = 16001386847911 is a prime.

It is a super-2 number, since 2×16001403625127² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16001403625121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8000701812563 + 8000701812564.

It is an arithmetic number, because the mean of its divisors is an integer number (8000701812564).

Almost surely, 2^{16001403625127} is an apocalyptic number.

16001403625127 is a deficient number, since it is larger than the sum of its proper divisors (1).

16001403625127 is an equidigital number, since it uses as much as digits as its factorization.

16001403625127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 16001403625127 in words is "sixteen trillion, one billion, four hundred three million, six hundred twenty-five thousand, one hundred twenty-seven".