1636142112 has 96 divisors (see below), whose sum is σ = 5205936960. Its totient is φ = 495797760.

The previous prime is 1636142069. The next prime is 1636142153. The reversal of 1636142112 is 2112416361.

It is a happy number.

1636142112 is a `hidden beast` number, since 1 + 636 + 1 + 4 + 21 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1636142112² = 5353922021319641088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76573 + ... + 95580.

It is an arithmetic number, because the mean of its divisors is an integer number (54228510).

Almost surely, 2^1636142112 is an apocalyptic number.

1636142112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1636142112 is an abundant number, since it is smaller than the sum of its proper divisors (3569794848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1636142112 is a wasteful number, since it uses less digits than its factorization.

1636142112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172183 (or 172169 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1636142112 is about 40449.2535407021. The cubic root of 1636142112 is about 1178.3482856504.

Adding to 1636142112 its reverse (2112416361), we get a palindrome (3748558473).

The spelling of 1636142112 in words is "one billion, six hundred thirty-six million, one hundred forty-two thousand, one hundred twelve".