11345561137 has 8 divisors (see below), whose sum is σ = 11722128704. Its totient is φ = 10974117168.

The previous prime is 11345561107. The next prime is 11345561207. The reversal of 11345561137 is 73116554311.

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

It is a cyclic number.

It is not a de Polignac number, because 11345561137 - 2¹⁹ = 11345036849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11345561096 and 11345561105.

It is not an unprimeable number, because it can be changed into a prime (11345561107) 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, 1276398 + ... + 1285255.

It is an arithmetic number, because the mean of its divisors is an integer number (1465266088).

Almost surely, 2^11345561137 is an apocalyptic number.

It is an amenable number.

11345561137 is a deficient number, since it is larger than the sum of its proper divisors (376567567).

11345561137 is a wasteful number, since it uses less digits than its factorization.

11345561137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561799.

The product of its digits is 37800, while the sum is 37.

The spelling of 11345561137 in words is "eleven billion, three hundred forty-five million, five hundred sixty-one thousand, one hundred thirty-seven".