16001477377 has 2 divisors, whose sum is σ = 16001477378. Its totient is φ = 16001477376.

The previous prime is 16001477333. The next prime is 16001477381. The reversal of 16001477377 is 77377410061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10399104576 + 5602372801 = 101976^2 + 74849^2 .

It is a cyclic number.

It is not a de Polignac number, because 16001477377 - 2³¹ = 13853993729 is a prime.

It is not a weakly prime, because it can be changed into another prime (16001477077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8000738688 + 8000738689.

It is an arithmetic number, because the mean of its divisors is an integer number (8000738689).

Almost surely, 2^16001477377 is an apocalyptic number.

It is an amenable number.

16001477377 is a deficient number, since it is larger than the sum of its proper divisors (1).

16001477377 is an equidigital number, since it uses as much as digits as its factorization.

16001477377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172872, while the sum is 43.

The spelling of 16001477377 in words is "sixteen billion, one million, four hundred seventy-seven thousand, three hundred seventy-seven".