11666510601 has 8 divisors (see below), whose sum is σ = 16091738880. Its totient is φ = 7509478032.

The previous prime is 11666510591. The next prime is 11666510617. The reversal of 11666510601 is 10601566611.

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

It is not a de Polignac number, because 11666510601 - 2¹³ = 11666502409 is a prime.

It is a super-2 number, since 2×11666510601² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11666510651) 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, 67048825 + ... + 67048998.

It is an arithmetic number, because the mean of its divisors is an integer number (2011467360).

Almost surely, 2^11666510601 is an apocalyptic number.

It is an amenable number.

11666510601 is a deficient number, since it is larger than the sum of its proper divisors (4425228279).

11666510601 is a wasteful number, since it uses less digits than its factorization.

11666510601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134097855.

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 11666510601 in words is "eleven billion, six hundred sixty-six million, five hundred ten thousand, six hundred one".