1201610566 has 16 divisors (see below), whose sum is σ = 1959912864. Its totient is φ = 549203904.

The previous prime is 1201610537. The next prime is 1201610581. The reversal of 1201610566 is 6650161021.

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, 221671 + ... + 227026.

It is an arithmetic number, because the mean of its divisors is an integer number (122494554).

Almost surely, 2^1201610566 is an apocalyptic number.

1201610566 is a deficient number, since it is larger than the sum of its proper divisors (758302298).

1201610566 is a wasteful number, since it uses less digits than its factorization.

1201610566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448815.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1201610566 is about 34664.2548744380. The cubic root of 1201610566 is about 1063.1337682520.

Adding to 1201610566 its reverse (6650161021), we get a palindrome (7851771587).

The spelling of 1201610566 in words is "one billion, two hundred one million, six hundred ten thousand, five hundred sixty-six".