16976549069 has 2 divisors, whose sum is σ = 16976549070. Its totient is φ = 16976549068.

The previous prime is 16976548991. The next prime is 16976549141. The reversal of 16976549069 is 96094567961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16476803044 + 499746025 = 128362^2 + 22355^2 .

It is a cyclic number.

It is not a de Polignac number, because 16976549069 - 2¹⁶ = 16976483533 is a prime.

It is a super-2 number, since 2×16976549069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16976542069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8488274534 + 8488274535.

It is an arithmetic number, because the mean of its divisors is an integer number (8488274535).

Almost surely, 2^16976549069 is an apocalyptic number.

It is an amenable number.

16976549069 is a deficient number, since it is larger than the sum of its proper divisors (1).

16976549069 is an equidigital number, since it uses as much as digits as its factorization.

16976549069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22044960, while the sum is 62.

The spelling of 16976549069 in words is "sixteen billion, nine hundred seventy-six million, five hundred forty-nine thousand, sixty-nine".