16464636757 has 2 divisors, whose sum is σ = 16464636758. Its totient is φ = 16464636756.

The previous prime is 16464636673. The next prime is 16464636761. The reversal of 16464636757 is 75763646461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16414990641 + 49646116 = 128121^2 + 7046^2 .

It is a cyclic number.

It is not a de Polignac number, because 16464636757 - 2²⁷ = 16330419029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16464636698 and 16464636707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16464636767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8232318378 + 8232318379.

It is an arithmetic number, because the mean of its divisors is an integer number (8232318379).

Almost surely, 2^16464636757 is an apocalyptic number.

It is an amenable number.

16464636757 is a deficient number, since it is larger than the sum of its proper divisors (1).

16464636757 is an equidigital number, since it uses as much as digits as its factorization.

16464636757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15240960, while the sum is 55.

The spelling of 16464636757 in words is "sixteen billion, four hundred sixty-four million, six hundred thirty-six thousand, seven hundred fifty-seven".