5021661205 has 16 divisors (see below), whose sum is σ = 6581995200. Its totient is φ = 3647570560.

The previous prime is 5021661193. The next prime is 5021661223.

5021661205 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5021661205 - 2⁵ = 5021661173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11935 + ... + 100924.

It is an arithmetic number, because the mean of its divisors is an integer number (411374700).

Almost surely, 2^5021661205 is an apocalyptic number.

5021661205 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5021661205 is a deficient number, since it is larger than the sum of its proper divisors (1560333995).

5021661205 is a wasteful number, since it uses less digits than its factorization.

5021661205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113684.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 5021661205 is about 70863.6804364549. The cubic root of 5021661205 is about 1712.4417319404.

The spelling of 5021661205 in words is "five billion, twenty-one million, six hundred sixty-one thousand, two hundred five".