16049940461 has 2 divisors, whose sum is σ = 16049940462. Its totient is φ = 16049940460.

The previous prime is 16049940457. The next prime is 16049940481. The reversal of 16049940461 is 16404994061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12054942025 + 3994998436 = 109795^2 + 63206^2 .

It is a cyclic number.

It is not a de Polignac number, because 16049940461 - 2² = 16049940457 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16049940481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8024970230 + 8024970231.

It is an arithmetic number, because the mean of its divisors is an integer number (8024970231).

Almost surely, 2^16049940461 is an apocalyptic number.

It is an amenable number.

16049940461 is a deficient number, since it is larger than the sum of its proper divisors (1).

16049940461 is an equidigital number, since it uses as much as digits as its factorization.

16049940461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 16049940461 in words is "sixteen billion, forty-nine million, nine hundred forty thousand, four hundred sixty-one".