20837016450 has 192 divisors, whose sum is σ = 61192869120. Its totient is φ = 5195473920.

The previous prime is 20837016449. The next prime is 20837016479. The reversal of 20837016450 is 5461073802.

20837016450 is a `hidden beast` number, since 2 + 0 + 8 + 3 + 7 + 0 + 1 + 645 + 0 = 666.

It is a super-3 number, since 3×20837016450³ (a number of 32 digits) contains 333 as substring.

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, 3600259 + ... + 3606041.

It is an arithmetic number, because the mean of its divisors is an integer number (318712860).

Almost surely, 2^20837016450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20837016450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30596434560).

20837016450 is an abundant number, since it is smaller than the sum of its proper divisors (40355852670).

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

20837016450 is a wasteful number, since it uses less digits than its factorization.

20837016450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5978 (or 5967 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 20837016450 in words is "twenty billion, eight hundred thirty-seven million, sixteen thousand, four hundred fifty".