2044641566 has 32 divisors (see below), whose sum is σ = 3525984000. Its totient is φ = 879439680.

The previous prime is 2044641553. The next prime is 2044641583. The reversal of 2044641566 is 6651464402.

It is a super-3 number, since 3×2044641566³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 436151 + ... + 440813.

It is an arithmetic number, because the mean of its divisors is an integer number (110187000).

Almost surely, 2^2044641566 is an apocalyptic number.

2044641566 is a deficient number, since it is larger than the sum of its proper divisors (1481342434).

2044641566 is a wasteful number, since it uses less digits than its factorization.

2044641566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5744.

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 2044641566 is about 45217.7129673760. The cubic root of 2044641566 is about 1269.2262975051.

The spelling of 2044641566 in words is "two billion, forty-four million, six hundred forty-one thousand, five hundred sixty-six".