1366072565642 has 4 divisors (see below), whose sum is σ = 2049108848466. Its totient is φ = 683036282820.

The previous prime is 1366072565569. The next prime is 1366072565677. The reversal of 1366072565642 is 2465652706631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1253237709361 + 112834856281 = 1119481^2 + 335909^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341518141409 + ... + 341518141412.

Almost surely, 2^{1366072565642} is an apocalyptic number.

1366072565642 is a deficient number, since it is larger than the sum of its proper divisors (683036282824).

1366072565642 is an equidigital number, since it uses as much as digits as its factorization.

1366072565642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683036282823.

The product of its (nonzero) digits is 10886400, while the sum is 53.

The spelling of 1366072565642 in words is "one trillion, three hundred sixty-six billion, seventy-two million, five hundred sixty-five thousand, six hundred forty-two".