155115302115545 has 8 divisors (see below), whose sum is σ = 186139435441920. Its totient is φ = 124091526423600.

The previous prime is 155115302115517. The next prime is 155115302115547. The reversal of 155115302115545 is 545511203511551.

155115302115545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155115302115545 - 2⁶ = 155115302115481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155115302115496 and 155115302115505.

It is not an unprimeable number, because it can be changed into a prime (155115302115547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88453481 + ... + 90190070.

It is an arithmetic number, because the mean of its divisors is an integer number (23267429430240).

Almost surely, 2^{155115302115545} is an apocalyptic number.

It is an amenable number.

155115302115545 is a deficient number, since it is larger than the sum of its proper divisors (31024133326375).

155115302115545 is a wasteful number, since it uses less digits than its factorization.

155115302115545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178817215.

The product of its (nonzero) digits is 375000, while the sum is 44.

The spelling of 155115302115545 in words is "one hundred fifty-five trillion, one hundred fifteen billion, three hundred two million, one hundred fifteen thousand, five hundred forty-five".