16140644120 has 32 divisors (see below), whose sum is σ = 37089144000. Its totient is φ = 6318889728.

The previous prime is 16140644119. The next prime is 16140644123. The reversal of 16140644120 is 2144604161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16140644123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4290845 + ... + 4294604.

It is an arithmetic number, because the mean of its divisors is an integer number (1159035750).

Almost surely, 2^16140644120 is an apocalyptic number.

16140644120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16140644120 is an abundant number, since it is smaller than the sum of its proper divisors (20948499880).

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

16140644120 is a wasteful number, since it uses less digits than its factorization.

16140644120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8585507 (or 8585503 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The spelling of 16140644120 in words is "sixteen billion, one hundred forty million, six hundred forty-four thousand, one hundred twenty".