16061156497 has 2 divisors, whose sum is σ = 16061156498. Its totient is φ = 16061156496.

The previous prime is 16061156413. The next prime is 16061156543. The reversal of 16061156497 is 79465116061.

It is an a-pointer prime, because the next prime (16061156543) can be obtained adding 16061156497 to its sum of digits (46).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16058211841 + 2944656 = 126721^2 + 1716^2 .

It is a cyclic number.

It is not a de Polignac number, because 16061156497 - 2¹⁹ = 16060632209 is a prime.

It is a super-2 number, since 2×16061156497² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16061156407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8030578248 + 8030578249.

It is an arithmetic number, because the mean of its divisors is an integer number (8030578249).

Almost surely, 2^16061156497 is an apocalyptic number.

It is an amenable number.

16061156497 is a deficient number, since it is larger than the sum of its proper divisors (1).

16061156497 is an equidigital number, since it uses as much as digits as its factorization.

16061156497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 16061156497 in words is "sixteen billion, sixty-one million, one hundred fifty-six thousand, four hundred ninety-seven".