211116162320 has 80 divisors (see below), whose sum is σ = 561027841920. Its totient is φ = 72374679552.

The previous prime is 211116162307. The next prime is 211116162347. The reversal of 211116162320 is 23261611112.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 211116162320.

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, 7410824 + ... + 7439256.

It is an arithmetic number, because the mean of its divisors is an integer number (7012848024).

Almost surely, 2^211116162320 is an apocalyptic number.

211116162320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211116162320 is an abundant number, since it is smaller than the sum of its proper divisors (349911679600).

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

211116162320 is a wasteful number, since it uses less digits than its factorization.

211116162320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41712 (or 41706 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 211116162320 its reverse (23261611112), we get a palindrome (234377773432).

The spelling of 211116162320 in words is "two hundred eleven billion, one hundred sixteen million, one hundred sixty-two thousand, three hundred twenty".