16452372977 has 2 divisors, whose sum is σ = 16452372978. Its totient is φ = 16452372976.

The previous prime is 16452372919. The next prime is 16452373027. The reversal of 16452372977 is 77927325461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9041917921 + 7410455056 = 95089^2 + 86084^2 .

It is an emirp because it is prime and its reverse (77927325461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16452372977 - 2⁸ = 16452372721 is a prime.

It is not a weakly prime, because it can be changed into another prime (16452372907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8226186488 + 8226186489.

It is an arithmetic number, because the mean of its divisors is an integer number (8226186489).

Almost surely, 2^16452372977 is an apocalyptic number.

It is an amenable number.

16452372977 is a deficient number, since it is larger than the sum of its proper divisors (1).

16452372977 is an equidigital number, since it uses as much as digits as its factorization.

16452372977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4445280, while the sum is 53.

The spelling of 16452372977 in words is "sixteen billion, four hundred fifty-two million, three hundred seventy-two thousand, nine hundred seventy-seven".