16477099709 has 6 divisors (see below), whose sum is σ = 19167238494. Its totient is φ = 14123228280.

The previous prime is 16477099699. The next prime is 16477099711. The reversal of 16477099709 is 90799077461.

It can be written as a sum of positive squares in only one way, i.e., 15927197209 + 549902500 = 126203^2 + 23450^2 .

It is not a de Polignac number, because 16477099709 - 2⁴ = 16477099693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16477099739) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 168133622 + ... + 168133719.

It is an arithmetic number, because the mean of its divisors is an integer number (3194539749).

Almost surely, 2^16477099709 is an apocalyptic number.

It is an amenable number.

16477099709 is a deficient number, since it is larger than the sum of its proper divisors (2690138785).

16477099709 is an equidigital number, since it uses as much as digits as its factorization.

16477099709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336267355 (or 336267348 counting only the distinct ones).

The product of its (nonzero) digits is 6001128, while the sum is 59.

The spelling of 16477099709 in words is "sixteen billion, four hundred seventy-seven million, ninety-nine thousand, seven hundred nine".