13546127661 has 16 divisors (see below), whose sum is σ = 19707079680. Its totient is φ = 8208265520.

The previous prime is 13546127657. The next prime is 13546127677. The reversal of 13546127661 is 16672164531.

It is a cyclic number.

It is not a de Polignac number, because 13546127661 - 2² = 13546127657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13546127611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160030 + ... + 229568.

It is an arithmetic number, because the mean of its divisors is an integer number (1231692480).

Almost surely, 2^13546127661 is an apocalyptic number.

13546127661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13546127661 is a deficient number, since it is larger than the sum of its proper divisors (6160952019).

13546127661 is a wasteful number, since it uses less digits than its factorization.

13546127661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75456.

The product of its digits is 181440, while the sum is 42.

The spelling of 13546127661 in words is "thirteen billion, five hundred forty-six million, one hundred twenty-seven thousand, six hundred sixty-one".