11661762851365 has 16 divisors (see below), whose sum is σ = 15266421314496. Its totient is φ = 8481218972800.

The previous prime is 11661762851267. The next prime is 11661762851437. The reversal of 11661762851365 is 56315826716611.

It is not a de Polignac number, because 11661762851365 - 2³³ = 11653172916773 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7445274 + ... + 8874436.

It is an arithmetic number, because the mean of its divisors is an integer number (954151332156).

Almost surely, 2^{11661762851365} is an apocalyptic number.

It is an amenable number.

11661762851365 is a deficient number, since it is larger than the sum of its proper divisors (3604658463131).

11661762851365 is a wasteful number, since it uses less digits than its factorization.

11661762851365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577540.

The product of its digits is 10886400, while the sum is 58.

The spelling of 11661762851365 in words is "eleven trillion, six hundred sixty-one billion, seven hundred sixty-two million, eight hundred fifty-one thousand, three hundred sixty-five".