20111368952 has 8 divisors (see below), whose sum is σ = 37708816800. Its totient is φ = 10055684472.

The previous prime is 20111368943. The next prime is 20111368987. The reversal of 20111368952 is 25986311102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×20111368952² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1256960552 + ... + 1256960567.

It is an arithmetic number, because the mean of its divisors is an integer number (4713602100).

Almost surely, 2^20111368952 is an apocalyptic number.

It is an amenable number.

20111368952 is a deficient number, since it is larger than the sum of its proper divisors (17597447848).

20111368952 is a wasteful number, since it uses less digits than its factorization.

20111368952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513921125 (or 2513921121 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 20111368952 in words is "twenty billion, one hundred eleven million, three hundred sixty-eight thousand, nine hundred fifty-two".