11133133712465 has 8 divisors (see below), whose sum is σ = 13375422547368. Its totient is φ = 8896065575040.

The previous prime is 11133133712431. The next prime is 11133133712539. The reversal of 11133133712465 is 56421733133111.

It can be written as a sum of positive squares in 4 ways, for example, as 2006154966544 + 9126978745921 = 1416388^2 + 3021089^2 .

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

It is not a de Polignac number, because 11133133712465 - 2⁸ = 11133133712209 is a prime.

It is a Duffinian 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, 1305169676 + ... + 1305178205.

It is an arithmetic number, because the mean of its divisors is an integer number (1671927818421).

Almost surely, 2^{11133133712465} is an apocalyptic number.

It is an amenable number.

11133133712465 is a deficient number, since it is larger than the sum of its proper divisors (2242288834903).

11133133712465 is an equidigital number, since it uses as much as digits as its factorization.

11133133712465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610348739.

The product of its digits is 136080, while the sum is 41.

Adding to 11133133712465 its reverse (56421733133111), we get a palindrome (67554866845576).

The spelling of 11133133712465 in words is "eleven trillion, one hundred thirty-three billion, one hundred thirty-three million, seven hundred twelve thousand, four hundred sixty-five".