2149827566 has 8 divisors (see below), whose sum is σ = 3232784304. Its totient is φ = 1072232800.

The previous prime is 2149827557. The next prime is 2149827583. The reversal of 2149827566 is 6657289412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1339490 + ... + 1341093.

It is an arithmetic number, because the mean of its divisors is an integer number (404098038).

Almost surely, 2^2149827566 is an apocalyptic number.

2149827566 is a deficient number, since it is larger than the sum of its proper divisors (1082956738).

2149827566 is a wasteful number, since it uses less digits than its factorization.

2149827566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680986.

The product of its digits is 1451520, while the sum is 50.

The square root of 2149827566 is about 46366.2330365537. The cubic root of 2149827566 is about 1290.6283752301.

The spelling of 2149827566 in words is "two billion, one hundred forty-nine million, eight hundred twenty-seven thousand, five hundred sixty-six".