16377556379 has 2 divisors, whose sum is σ = 16377556380. Its totient is φ = 16377556378.

The previous prime is 16377556357. The next prime is 16377556417. The reversal of 16377556379 is 97365577361.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16377556379 is a prime.

It is not a weakly prime, because it can be changed into another prime (16377550379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8188778189 + 8188778190.

It is an arithmetic number, because the mean of its divisors is an integer number (8188778190).

Almost surely, 2^16377556379 is an apocalyptic number.

16377556379 is a deficient number, since it is larger than the sum of its proper divisors (1).

16377556379 is an equidigital number, since it uses as much as digits as its factorization.

16377556379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25004700, while the sum is 59.

The spelling of 16377556379 in words is "sixteen billion, three hundred seventy-seven million, five hundred fifty-six thousand, three hundred seventy-nine".