13454640161 has 8 divisors (see below), whose sum is σ = 13919898600. Its totient is φ = 12989468800.

The previous prime is 13454640109. The next prime is 13454640167. The reversal of 13454640161 is 16104645431.

It can be written as a sum of positive squares in 4 ways, for example, as 2438878225 + 11015761936 = 49385^2 + 104956^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13454640161 - 2³⁰ = 12380898337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13454640167) 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, 529925 + ... + 554733.

It is an arithmetic number, because the mean of its divisors is an integer number (1739987325).

Almost surely, 2^13454640161 is an apocalyptic number.

It is an amenable number.

13454640161 is a deficient number, since it is larger than the sum of its proper divisors (465258439).

13454640161 is a wasteful number, since it uses less digits than its factorization.

13454640161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43539.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 13454640161 in words is "thirteen billion, four hundred fifty-four million, six hundred forty thousand, one hundred sixty-one".