11666101506 has 32 divisors (see below), whose sum is σ = 24081857280. Its totient is φ = 3765726096.

The previous prime is 11666101459. The next prime is 11666101547. The reversal of 11666101506 is 60510166611.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222216 + ... + 269651.

It is an arithmetic number, because the mean of its divisors is an integer number (752558040).

Almost surely, 2^11666101506 is an apocalyptic number.

11666101506 is an abundant number, since it is smaller than the sum of its proper divisors (12415755774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11666101506 is a wasteful number, since it uses less digits than its factorization.

11666101506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491998.

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

The spelling of 11666101506 in words is "eleven billion, six hundred sixty-six million, one hundred one thousand, five hundred six".