1101161560155 has 32 divisors (see below), whose sum is σ = 1828842375168. Its totient is φ = 565367894400.

The previous prime is 1101161560151. The next prime is 1101161560171. The reversal of 1101161560155 is 5510651611011.

It is not a de Polignac number, because 1101161560155 - 2² = 1101161560151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1101161560151) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 12759711 + ... + 12845720.

It is an arithmetic number, because the mean of its divisors is an integer number (57151324224).

Almost surely, 2^{1101161560155} is an apocalyptic number.

1101161560155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1101161560155 is a deficient number, since it is larger than the sum of its proper divisors (727680815013).

1101161560155 is a wasteful number, since it uses less digits than its factorization.

1101161560155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25605547.

The product of its (nonzero) digits is 4500, while the sum is 33.

The spelling of 1101161560155 in words is "one trillion, one hundred one billion, one hundred sixty-one million, five hundred sixty thousand, one hundred fifty-five".