1361611066 has 16 divisors (see below), whose sum is σ = 2093432040. Its totient is φ = 663819520.

The previous prime is 1361611061. The next prime is 1361611067. The reversal of 1361611066 is 6601161631.

It can be written as a sum of positive squares in 4 ways, for example, as 1226470441 + 135140625 = 35021^2 + 11625^2 .

It is not an unprimeable number, because it can be changed into a prime (1361611061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184740 + ... + 191968.

Almost surely, 2^1361611066 is an apocalyptic number.

1361611066 is a deficient number, since it is larger than the sum of its proper divisors (731820974).

1361611066 is a wasteful number, since it uses less digits than its factorization.

1361611066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9569.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 1361611066 is about 36900.0144444416. The cubic root of 1361611066 is about 1108.3689667076.

Adding to 1361611066 its reverse (6601161631), we get a palindrome (7962772697).

The spelling of 1361611066 in words is "one billion, three hundred sixty-one million, six hundred eleven thousand, sixty-six".