11161834978 has 8 divisors (see below), whose sum is σ = 19134574272. Its totient is φ = 4783643556.

The previous prime is 11161834963. The next prime is 11161835011. The reversal of 11161834978 is 87943816111.

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

It is a super-2 number, since 2×11161834978² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398636950 + ... + 398636977.

It is an arithmetic number, because the mean of its divisors is an integer number (2391821784).

Almost surely, 2^11161834978 is an apocalyptic number.

11161834978 is a deficient number, since it is larger than the sum of its proper divisors (7972739294).

11161834978 is an equidigital number, since it uses as much as digits as its factorization.

11161834978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797273936.

The product of its digits is 290304, while the sum is 49.

The spelling of 11161834978 in words is "eleven billion, one hundred sixty-one million, eight hundred thirty-four thousand, nine hundred seventy-eight".