11916205970 has 16 divisors (see below), whose sum is σ = 21972322008. Its totient is φ = 4650226560.

The previous prime is 11916205949. The next prime is 11916205991. The reversal of 11916205970 is 7950261911.

11916205970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11916205949) and next prime (11916205991).

It can be written as a sum of positive squares in 4 ways, for example, as 9821404609 + 2094801361 = 99103^2 + 45769^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14531549 + ... + 14532368.

Almost surely, 2^11916205970 is an apocalyptic number.

11916205970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11916205970 is a deficient number, since it is larger than the sum of its proper divisors (10056116038).

11916205970 is a wasteful number, since it uses less digits than its factorization.

11916205970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29063965.

The product of its (nonzero) digits is 34020, while the sum is 41.

The spelling of 11916205970 in words is "eleven billion, nine hundred sixteen million, two hundred five thousand, nine hundred seventy".