12162278835 has 24 divisors (see below), whose sum is σ = 24092895840. Its totient is φ = 5559898752.

The previous prime is 12162278833. The next prime is 12162278861. The reversal of 12162278835 is 53887226121.

12162278835 is a `hidden beast` number, since 12 + 1 + 622 + 7 + 8 + 8 + 3 + 5 = 666.

It is not a de Polignac number, because 12162278835 - 2¹ = 12162278833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (12162278833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19304890 + ... + 19305519.

It is an arithmetic number, because the mean of its divisors is an integer number (1003870660).

Almost surely, 2^12162278835 is an apocalyptic number.

12162278835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12162278835 is a deficient number, since it is larger than the sum of its proper divisors (11930617005).

12162278835 is a wasteful number, since it uses less digits than its factorization.

12162278835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38610427 (or 38610424 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The spelling of 12162278835 in words is "twelve billion, one hundred sixty-two million, two hundred seventy-eight thousand, eight hundred thirty-five".