11155872066 has 16 divisors (see below), whose sum is σ = 22316295744. Its totient is φ = 3717865424.

The previous prime is 11155872029. The next prime is 11155872083. The reversal of 11155872066 is 66027855111.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157365 + ... + 216968.

It is an arithmetic number, because the mean of its divisors is an integer number (1394768484).

Almost surely, 2^11155872066 is an apocalyptic number.

11155872066 is an abundant number, since it is smaller than the sum of its proper divisors (11160423678).

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

11155872066 is a wasteful number, since it uses less digits than its factorization.

11155872066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379305.

The product of its (nonzero) digits is 100800, while the sum is 42.

The spelling of 11155872066 in words is "eleven billion, one hundred fifty-five million, eight hundred seventy-two thousand, sixty-six".