136161441561 has 8 divisors (see below), whose sum is σ = 181807576704. Its totient is φ = 90644800400.

The previous prime is 136161441547. The next prime is 136161441583. The reversal of 136161441561 is 165144161631.

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 136161441561 - 2⁹ = 136161441049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136161441511) 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, 32371041 + ... + 32375246.

It is an arithmetic number, because the mean of its divisors is an integer number (22725947088).

Almost surely, 2^136161441561 is an apocalyptic number.

It is an amenable number.

136161441561 is a deficient number, since it is larger than the sum of its proper divisors (45646135143).

136161441561 is an equidigital number, since it uses as much as digits as its factorization.

136161441561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64746991.

The product of its digits is 51840, while the sum is 39.

The spelling of 136161441561 in words is "one hundred thirty-six billion, one hundred sixty-one million, four hundred forty-one thousand, five hundred sixty-one".