16452012977 has 2 divisors, whose sum is σ = 16452012978. Its totient is φ = 16452012976.

The previous prime is 16452012971. The next prime is 16452013021. The reversal of 16452012977 is 77921025461.

It is an a-pointer prime, because the next prime (16452013021) can be obtained adding 16452012977 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15717386161 + 734626816 = 125369^2 + 27104^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16452012977 is a prime.

It is not a weakly prime, because it can be changed into another prime (16452012971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8226006488 + 8226006489.

It is an arithmetic number, because the mean of its divisors is an integer number (8226006489).

Almost surely, 2^16452012977 is an apocalyptic number.

It is an amenable number.

16452012977 is a deficient number, since it is larger than the sum of its proper divisors (1).

16452012977 is an equidigital number, since it uses as much as digits as its factorization.

16452012977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 16452012977 in words is "sixteen billion, four hundred fifty-two million, twelve thousand, nine hundred seventy-seven".