155608747806551 has 4 divisors (see below), whose sum is σ = 167578651483992. Its totient is φ = 143638844129112.

The previous prime is 155608747806541. The next prime is 155608747806563.

155608747806551 is nontrivially palindromic in base 10.

155608747806551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 155608747806551 - 2⁴⁶ = 85240003628887 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 (155608747806541) 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, 5984951838701 + ... + 5984951838726.

It is an arithmetic number, because the mean of its divisors is an integer number (41894662870998).

Almost surely, 2^{155608747806551} is an apocalyptic number.

155608747806551 is a deficient number, since it is larger than the sum of its proper divisors (11969903677441).

155608747806551 is a wasteful number, since it uses less digits than its factorization.

155608747806551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11969903677440.

The product of its (nonzero) digits is 282240000, while the sum is 68.

The spelling of 155608747806551 in words is "one hundred fifty-five trillion, six hundred eight billion, seven hundred forty-seven million, eight hundred six thousand, five hundred fifty-one".