154551104555 has 4 divisors (see below), whose sum is σ = 185461325472. Its totient is φ = 123640883640.

The previous prime is 154551104467. The next prime is 154551104563. The reversal of 154551104555 is 555401155451.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-154551104555 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15455110451 + ... + 15455110460.

It is an arithmetic number, because the mean of its divisors is an integer number (46365331368).

Almost surely, 2^154551104555 is an apocalyptic number.

154551104555 is a deficient number, since it is larger than the sum of its proper divisors (30910220917).

154551104555 is an equidigital number, since it uses as much as digits as its factorization.

154551104555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30910220916.

The product of its (nonzero) digits is 250000, while the sum is 41.

The spelling of 154551104555 in words is "one hundred fifty-four billion, five hundred fifty-one million, one hundred four thousand, five hundred fifty-five".