16411521349 has 2 divisors, whose sum is σ = 16411521350. Its totient is φ = 16411521348.

The previous prime is 16411521307. The next prime is 16411521431. The reversal of 16411521349 is 94312511461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12565289025 + 3846232324 = 112095^2 + 62018^2 .

It is a cyclic number.

It is not a de Polignac number, because 16411521349 - 2²⁹ = 15874650437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16411521449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8205760674 + 8205760675.

It is an arithmetic number, because the mean of its divisors is an integer number (8205760675).

Almost surely, 2^16411521349 is an apocalyptic number.

It is an amenable number.

16411521349 is a deficient number, since it is larger than the sum of its proper divisors (1).

16411521349 is an equidigital number, since it uses as much as digits as its factorization.

16411521349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 37.

The spelling of 16411521349 in words is "sixteen billion, four hundred eleven million, five hundred twenty-one thousand, three hundred forty-nine".