155048108504623 has 4 divisors (see below), whose sum is σ = 155048343248160. Its totient is φ = 155047873761088.

The previous prime is 155048108504621. The next prime is 155048108504647. The reversal of 155048108504623 is 326405801840551.

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 155048108504623 - 2¹ = 155048108504621 is a prime.

It is a super-2 number, since 2×155048108504623² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155048108504621) 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, 116378215 + ... + 117702952.

It is an arithmetic number, because the mean of its divisors is an integer number (38762085812040).

Almost surely, 2^{155048108504623} is an apocalyptic number.

155048108504623 is a deficient number, since it is larger than the sum of its proper divisors (234743537).

155048108504623 is an equidigital number, since it uses as much as digits as its factorization.

155048108504623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234743536.

The product of its (nonzero) digits is 4608000, while the sum is 52.

The spelling of 155048108504623 in words is "one hundred fifty-five trillion, forty-eight billion, one hundred eight million, five hundred four thousand, six hundred twenty-three".