154418452161 has 4 divisors (see below), whose sum is σ = 205891269552. Its totient is φ = 102945634772.

The previous prime is 154418452147. The next prime is 154418452187. The reversal of 154418452161 is 161254814451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 154418452161 - 2²⁶ = 154351343297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154418452141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25736408691 + ... + 25736408696.

It is an arithmetic number, because the mean of its divisors is an integer number (51472817388).

Almost surely, 2^154418452161 is an apocalyptic number.

It is an amenable number.

154418452161 is a deficient number, since it is larger than the sum of its proper divisors (51472817391).

154418452161 is an equidigital number, since it uses as much as digits as its factorization.

154418452161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51472817390.

The product of its digits is 153600, while the sum is 42.

The spelling of 154418452161 in words is "one hundred fifty-four billion, four hundred eighteen million, four hundred fifty-two thousand, one hundred sixty-one".