2257071566 has 16 divisors (see below), whose sum is σ = 3587779440. Its totient is φ = 1063043520.

The previous prime is 2257071547. The next prime is 2257071587. The reversal of 2257071566 is 6651707522.

2257071566 = 3628² + 3629² + ... + 3791².

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 472196 + ... + 476951.

It is an arithmetic number, because the mean of its divisors is an integer number (224236215).

Almost surely, 2^2257071566 is an apocalyptic number.

2257071566 is a deficient number, since it is larger than the sum of its proper divisors (1330707874).

2257071566 is a wasteful number, since it uses less digits than its factorization.

2257071566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949219.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 2257071566 is about 47508.6472760486. The cubic root of 2257071566 is about 1311.7420573958.

The spelling of 2257071566 in words is "two billion, two hundred fifty-seven million, seventy-one thousand, five hundred sixty-six".