5756251666 has 32 divisors (see below), whose sum is σ = 10102190400. Its totient is φ = 2431990080.

The previous prime is 5756251661. The next prime is 5756251693. The reversal of 5756251666 is 6661526575.

It is a super-4 number, since 4×5756251666⁴ (a number of 40 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (5756251661) 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, 107761 + ... + 152068.

It is an arithmetic number, because the mean of its divisors is an integer number (315693450).

Almost surely, 2^5756251666 is an apocalyptic number.

5756251666 is a deficient number, since it is larger than the sum of its proper divisors (4345938734).

5756251666 is a wasteful number, since it uses less digits than its factorization.

5756251666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259914.

The product of its digits is 2268000, while the sum is 49.

The square root of 5756251666 is about 75869.9655067801. The cubic root of 5756251666 is about 1792.1729762425.

The spelling of 5756251666 in words is "five billion, seven hundred fifty-six million, two hundred fifty-one thousand, six hundred sixty-six".