5616121056 has 96 divisors (see below), whose sum is σ = 18144419328. Its totient is φ = 1481172480.

The previous prime is 5616121051. The next prime is 5616121067. The reversal of 5616121056 is 6501216165.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5616121051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312700 + ... + 330171.

It is an arithmetic number, because the mean of its divisors is an integer number (189004368).

Almost surely, 2^5616121056 is an apocalyptic number.

5616121056 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

5616121056 is an abundant number, since it is smaller than the sum of its proper divisors (12528298272).

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

5616121056 is a wasteful number, since it uses less digits than its factorization.

5616121056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642904 (or 642896 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 5616121056 is about 74940.7836628361. The cubic root of 5616121056 is about 1777.5104126024.

The spelling of 5616121056 in words is "five billion, six hundred sixteen million, one hundred twenty-one thousand, fifty-six".