11511611670651 has 8 divisors (see below), whose sum is σ = 15389313756480. Its totient is φ = 7654158682632.

The previous prime is 11511611670613. The next prime is 11511611670697. The reversal of 11511611670651 is 15607611611511.

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

It is not a de Polignac number, because 11511611670651 - 2¹³ = 11511611662459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11511611670751) 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, 5062273125 + ... + 5062275398.

It is an arithmetic number, because the mean of its divisors is an integer number (1923664219560).

Almost surely, 2^{11511611670651} is an apocalyptic number.

11511611670651 is a deficient number, since it is larger than the sum of its proper divisors (3877702085829).

11511611670651 is a wasteful number, since it uses less digits than its factorization.

11511611670651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10124548905.

The product of its (nonzero) digits is 37800, while the sum is 42.

The spelling of 11511611670651 in words is "eleven trillion, five hundred eleven billion, six hundred eleven million, six hundred seventy thousand, six hundred fifty-one".