6132121816 has 32 divisors (see below), whose sum is σ = 12703379040. Its totient is φ = 2760237568.

The previous prime is 6132121813. The next prime is 6132121829. The reversal of 6132121816 is 6181212316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6132121813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 977071 + ... + 983326.

It is an arithmetic number, because the mean of its divisors is an integer number (396980595).

Almost surely, 2^6132121816 is an apocalyptic number.

It is an amenable number.

6132121816 is an abundant number, since it is smaller than the sum of its proper divisors (6571257224).

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

6132121816 is a wasteful number, since it uses less digits than its factorization.

6132121816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960443 (or 1960439 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 6132121816 is about 78307.8656074854. The cubic root of 6132121816 is about 1830.3617205283.

The spelling of 6132121816 in words is "six billion, one hundred thirty-two million, one hundred twenty-one thousand, eight hundred sixteen".