12163165545 has 32 divisors (see below), whose sum is σ = 20018110464. Its totient is φ = 6302923200.

The previous prime is 12163165541. The next prime is 12163165583. The reversal of 12163165545 is 54556136121.

It is not a de Polignac number, because 12163165545 - 2² = 12163165541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12163165541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73830 + ... + 172560.

It is an arithmetic number, because the mean of its divisors is an integer number (625565952).

Almost surely, 2^12163165545 is an apocalyptic number.

12163165545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12163165545 is a deficient number, since it is larger than the sum of its proper divisors (7854944919).

12163165545 is a wasteful number, since it uses less digits than its factorization.

12163165545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98973.

The product of its digits is 108000, while the sum is 39.

The spelling of 12163165545 in words is "twelve billion, one hundred sixty-three million, one hundred sixty-five thousand, five hundred forty-five".