13546561994 has 16 divisors (see below), whose sum is σ = 23227516800. Its totient is φ = 5804459664.

The previous prime is 13546561969. The next prime is 13546561997. The reversal of 13546561994 is 49916564531.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13546561997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29489 + ... + 167220.

It is an arithmetic number, because the mean of its divisors is an integer number (1451719800).

Almost surely, 2^13546561994 is an apocalyptic number.

13546561994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13546561994 is a deficient number, since it is larger than the sum of its proper divisors (9680954806).

13546561994 is a wasteful number, since it uses less digits than its factorization.

13546561994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201637.

The product of its digits is 3499200, while the sum is 53.

The spelling of 13546561994 in words is "thirteen billion, five hundred forty-six million, five hundred sixty-one thousand, nine hundred ninety-four".