16477077461 has 4 divisors (see below), whose sum is σ = 17744544972. Its totient is φ = 15209609952.

The previous prime is 16477077401. The next prime is 16477077469.

It is a happy number.

16477077461 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5157394225 + 11319683236 = 71815^2 + 106394^2 .

It is a cyclic number.

It is not a de Polignac number, because 16477077461 - 2¹⁰ = 16477076437 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 (16477077469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633733736 + ... + 633733761.

It is an arithmetic number, because the mean of its divisors is an integer number (4436136243).

Almost surely, 2^16477077461 is an apocalyptic number.

It is an amenable number.

16477077461 is a deficient number, since it is larger than the sum of its proper divisors (1267467511).

16477077461 is a wasteful number, since it uses less digits than its factorization.

16477077461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267467510.

The product of its (nonzero) digits is 1382976, while the sum is 50.

The spelling of 16477077461 in words is "sixteen billion, four hundred seventy-seven million, seventy-seven thousand, four hundred sixty-one".