1155500155065 has 16 divisors (see below), whose sum is σ = 1946105524800. Its totient is φ = 583831657152.

The previous prime is 1155500155063. The next prime is 1155500155097. The reversal of 1155500155065 is 5605510055511.

It is not a de Polignac number, because 1155500155065 - 2¹ = 1155500155063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1155500155063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2027192970 + ... + 2027193539.

It is an arithmetic number, because the mean of its divisors is an integer number (121631595300).

Almost surely, 2^{1155500155065} is an apocalyptic number.

1155500155065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1155500155065 is a deficient number, since it is larger than the sum of its proper divisors (790605369735).

1155500155065 is a wasteful number, since it uses less digits than its factorization.

1155500155065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054386536.

The product of its (nonzero) digits is 93750, while the sum is 39.

The spelling of 1155500155065 in words is "one trillion, one hundred fifty-five billion, five hundred million, one hundred fifty-five thousand, sixty-five".