4551638116 has 36 divisors (see below), whose sum is σ = 8249029740. Its totient is φ = 2197478400.

The previous prime is 4551638087. The next prime is 4551638173. The reversal of 4551638116 is 6118361554.

It can be written as a sum of positive squares in 2 ways, for example, as 1205478400 + 3346159716 = 34720^2 + 57846^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2186196 + ... + 2188276.

It is an arithmetic number, because the mean of its divisors is an integer number (229139715).

Almost surely, 2^4551638116 is an apocalyptic number.

It is an amenable number.

4551638116 is a deficient number, since it is larger than the sum of its proper divisors (3697391624).

4551638116 is a wasteful number, since it uses less digits than its factorization.

4551638116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2716 (or 2683 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The square root of 4551638116 is about 67465.8292471085. The cubic root of 4551638116 is about 1657.2546332608.

The spelling of 4551638116 in words is "four billion, five hundred fifty-one million, six hundred thirty-eight thousand, one hundred sixteen".