16880977129 has 2 divisors, whose sum is σ = 16880977130. Its totient is φ = 16880977128.

The previous prime is 16880977097. The next prime is 16880977153. The reversal of 16880977129 is 92177908861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15538121104 + 1342856025 = 124652^2 + 36645^2 .

It is a cyclic number.

It is not a de Polignac number, because 16880977129 - 2⁵ = 16880977097 is a prime.

It is not a weakly prime, because it can be changed into another prime (16880957129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8440488564 + 8440488565.

It is an arithmetic number, because the mean of its divisors is an integer number (8440488565).

Almost surely, 2^16880977129 is an apocalyptic number.

It is an amenable number.

16880977129 is a deficient number, since it is larger than the sum of its proper divisors (1).

16880977129 is an equidigital number, since it uses as much as digits as its factorization.

16880977129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 58.

It can be divided in two parts, 16880 and 977129, that added together give a square (994009 = 997²).

The spelling of 16880977129 in words is "sixteen billion, eight hundred eighty million, nine hundred seventy-seven thousand, one hundred twenty-nine".