20316233534 has 16 divisors (see below), whose sum is σ = 30848211072. Its totient is φ = 10033549848.

The previous prime is 20316233507. The next prime is 20316233551. The reversal of 20316233534 is 43533261302.

It is a super-2 number, since 2×20316233534² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20316233534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 972887 + ... + 993549.

It is an arithmetic number, because the mean of its divisors is an integer number (1928013192).

Almost surely, 2^20316233534 is an apocalyptic number.

20316233534 is a deficient number, since it is larger than the sum of its proper divisors (10531977538).

20316233534 is a wasteful number, since it uses less digits than its factorization.

20316233534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26671.

The product of its (nonzero) digits is 38880, while the sum is 32.

Adding to 20316233534 its reverse (43533261302), we get a palindrome (63849494836).

The spelling of 20316233534 in words is "twenty billion, three hundred sixteen million, two hundred thirty-three thousand, five hundred thirty-four".