11151577515109 has 4 divisors (see below), whose sum is σ = 11511305822080. Its totient is φ = 10791849208140.

The previous prime is 11151577515103. The next prime is 11151577515191. The reversal of 11151577515109 is 90151577515111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11151577515109 - 2⁵ = 11151577515077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11151577515103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179864153439 + ... + 179864153500.

It is an arithmetic number, because the mean of its divisors is an integer number (2877826455520).

Almost surely, 2^{11151577515109} is an apocalyptic number.

It is an amenable number.

11151577515109 is a deficient number, since it is larger than the sum of its proper divisors (359728306971).

11151577515109 is an equidigital number, since it uses as much as digits as its factorization.

11151577515109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359728306970.

The product of its (nonzero) digits is 275625, while the sum is 49.

The spelling of 11151577515109 in words is "eleven trillion, one hundred fifty-one billion, five hundred seventy-seven million, five hundred fifteen thousand, one hundred nine".