16546562601 has 16 divisors (see below), whose sum is σ = 22124906496. Its totient is φ = 10999671696.

The previous prime is 16546562597. The next prime is 16546562609. The reversal of 16546562601 is 10626564561.

It is not a de Polignac number, because 16546562601 - 2² = 16546562597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16546562609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1914576 + ... + 1923198.

It is an arithmetic number, because the mean of its divisors is an integer number (1382806656).

Almost surely, 2^16546562601 is an apocalyptic number.

It is an amenable number.

16546562601 is a deficient number, since it is larger than the sum of its proper divisors (5578343895).

16546562601 is a wasteful number, since it uses less digits than its factorization.

16546562601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10372.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 16546562601 in words is "sixteen billion, five hundred forty-six million, five hundred sixty-two thousand, six hundred one".