12916557701 has 2 divisors, whose sum is σ = 12916557702. Its totient is φ = 12916557700.

The previous prime is 12916557683. The next prime is 12916557707. The reversal of 12916557701 is 10775561921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12337433476 + 579124225 = 111074^2 + 24065^2 .

It is an emirp because it is prime and its reverse (10775561921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12916557701 - 2³⁰ = 11842815877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12916557707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6458278850 + 6458278851.

It is an arithmetic number, because the mean of its divisors is an integer number (6458278851).

Almost surely, 2^12916557701 is an apocalyptic number.

It is an amenable number.

12916557701 is a deficient number, since it is larger than the sum of its proper divisors (1).

12916557701 is an equidigital number, since it uses as much as digits as its factorization.

12916557701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132300, while the sum is 44.

The spelling of 12916557701 in words is "twelve billion, nine hundred sixteen million, five hundred fifty-seven thousand, seven hundred one".