5204645166 has 64 divisors (see below), whose sum is σ = 12695519232. Its totient is φ = 1388524032.

The previous prime is 5204645143. The next prime is 5204645197. The reversal of 5204645166 is 6615464025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61980 + ... + 119376.

It is an arithmetic number, because the mean of its divisors is an integer number (198367488).

Almost surely, 2^5204645166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5204645166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6347759616).

5204645166 is an abundant number, since it is smaller than the sum of its proper divisors (7490874066).

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

5204645166 is a wasteful number, since it uses less digits than its factorization.

5204645166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57553.

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 5204645166 is about 72143.2267506798. The cubic root of 5204645166 is about 1732.9939320756.

It can be divided in two parts, 5204 and 645166, that added together give a triangular number (650370 = T₁₁₄₀).

The spelling of 5204645166 in words is "five billion, two hundred four million, six hundred forty-five thousand, one hundred sixty-six".