154860118661 has 4 divisors (see below), whose sum is σ = 154862706912. Its totient is φ = 154857530412.

The previous prime is 154860118657. The next prime is 154860118691. The reversal of 154860118661 is 166811068451.

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 154860118661 - 2² = 154860118657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154860118691) 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, 1202201 + ... + 1324766.

It is an arithmetic number, because the mean of its divisors is an integer number (38715676728).

Almost surely, 2^154860118661 is an apocalyptic number.

It is an amenable number.

154860118661 is a deficient number, since it is larger than the sum of its proper divisors (2588251).

154860118661 is an equidigital number, since it uses as much as digits as its factorization.

154860118661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2588250.

The product of its (nonzero) digits is 276480, while the sum is 47.

The spelling of 154860118661 in words is "one hundred fifty-four billion, eight hundred sixty million, one hundred eighteen thousand, six hundred sixty-one".