20111465356 has 12 divisors (see below), whose sum is σ = 35279065080. Its totient is φ = 10031732480.

The previous prime is 20111465347. The next prime is 20111465377. The reversal of 20111465356 is 65356411102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5998165 + ... + 6001516.

It is an arithmetic number, because the mean of its divisors is an integer number (2939922090).

Almost surely, 2^20111465356 is an apocalyptic number.

It is an amenable number.

20111465356 is a deficient number, since it is larger than the sum of its proper divisors (15167599724).

20111465356 is a wasteful number, since it uses less digits than its factorization.

20111465356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12000104 (or 12000102 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

Adding to 20111465356 its reverse (65356411102), we get a palindrome (85467876458).

The spelling of 20111465356 in words is "twenty billion, one hundred eleven million, four hundred sixty-five thousand, three hundred fifty-six".