1356140066 has 8 divisors (see below), whose sum is σ = 2034407340. Its totient is φ = 678004288.

The previous prime is 1356140057. The next prime is 1356140077. The reversal of 1356140066 is 6600416531.

It can be written as a sum of positive squares in 2 ways, for example, as 1355786041 + 354025 = 36821^2 + 595^2 .

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

It is a super-2 number, since 2×1356140066² = 3678231757220968712, which contains 22 as substring.

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, 851 + ... + 52086.

Almost surely, 2^1356140066 is an apocalyptic number.

1356140066 is a deficient number, since it is larger than the sum of its proper divisors (678267274).

1356140066 is a wasteful number, since it uses less digits than its factorization.

1356140066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65748.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1356140066 is about 36825.8070651547. The cubic root of 1356140066 is about 1106.8824858317.

Adding to 1356140066 its reverse (6600416531), we get a palindrome (7956556597).

The spelling of 1356140066 in words is "one billion, three hundred fifty-six million, one hundred forty thousand, sixty-six".