20315853162 has 192 divisors, whose sum is σ = 54435483648. Its totient is φ = 5606496000.

The previous prime is 20315853139. The next prime is 20315853253. The reversal of 20315853162 is 26135851302.

20315853162 is a `hidden beast` number, since 20 + 315 + 8 + 5 + 316 + 2 = 666.

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 95 ways as a sum of consecutive naturals, for example, 2813737 + ... + 2820947.

It is an arithmetic number, because the mean of its divisors is an integer number (283518144).

Almost surely, 2^20315853162 is an apocalyptic number.

20315853162 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20315853162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27217741824).

20315853162 is an abundant number, since it is smaller than the sum of its proper divisors (34119630486).

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

20315853162 is a wasteful number, since it uses less digits than its factorization.

20315853162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7287 (or 7275 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 20315853162 in words is "twenty billion, three hundred fifteen million, eight hundred fifty-three thousand, one hundred sixty-two".