47016721155 has 16 divisors (see below), whose sum is σ = 75406302720. Its totient is φ = 25015735008.

The previous prime is 47016721121. The next prime is 47016721159. The reversal of 47016721155 is 55112761074.

47016721155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47016721155 - 2²⁰ = 47015672579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47016721159) 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, 3734107 + ... + 3746676.

It is an arithmetic number, because the mean of its divisors is an integer number (4712893920).

Almost surely, 2^47016721155 is an apocalyptic number.

47016721155 is a deficient number, since it is larger than the sum of its proper divisors (28389581565).

47016721155 is a wasteful number, since it uses less digits than its factorization.

47016721155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7481210.

The product of its (nonzero) digits is 58800, while the sum is 39.

The spelling of 47016721155 in words is "forty-seven billion, sixteen million, seven hundred twenty-one thousand, one hundred fifty-five".