4971211566 has 16 divisors (see below), whose sum is σ = 10465708800. Its totient is φ = 1569856248.

The previous prime is 4971211549. The next prime is 4971211577. The reversal of 4971211566 is 6651121794.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21803446 + ... + 21803673.

It is an arithmetic number, because the mean of its divisors is an integer number (654106800).

Almost surely, 2^4971211566 is an apocalyptic number.

4971211566 is an abundant number, since it is smaller than the sum of its proper divisors (5494497234).

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

4971211566 is a wasteful number, since it uses less digits than its factorization.

4971211566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43607143.

The product of its digits is 90720, while the sum is 42.

The square root of 4971211566 is about 70506.8192872150. The cubic root of 4971211566 is about 1706.6877925462.

The spelling of 4971211566 in words is "four billion, nine hundred seventy-one million, two hundred eleven thousand, five hundred sixty-six".