155040065646155 has 4 divisors (see below), whose sum is σ = 186048078775392. Its totient is φ = 124032052516920.

The previous prime is 155040065646143. The next prime is 155040065646161. The reversal of 155040065646155 is 551646560040551.

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

It is not a de Polignac number, because 155040065646155 - 2⁶ = 155040065646091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155040065646097 and 155040065646106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15504006564611 + ... + 15504006564620.

It is an arithmetic number, because the mean of its divisors is an integer number (46512019693848).

Almost surely, 2^{155040065646155} is an apocalyptic number.

155040065646155 is a deficient number, since it is larger than the sum of its proper divisors (31008013129237).

155040065646155 is an equidigital number, since it uses as much as digits as its factorization.

155040065646155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31008013129236.

The product of its (nonzero) digits is 10800000, while the sum is 53.

The spelling of 155040065646155 in words is "one hundred fifty-five trillion, forty billion, sixty-five million, six hundred forty-six thousand, one hundred fifty-five".