20858416152 has 128 divisors (see below), whose sum is σ = 63148377600. Its totient is φ = 5604784128.

The previous prime is 20858416151. The next prime is 20858416193. The reversal of 20858416152 is 25161485802.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20858416151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6592923 + ... + 6596085.

It is an arithmetic number, because the mean of its divisors is an integer number (493346700).

Almost surely, 2^20858416152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20858416152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31574188800).

20858416152 is an abundant number, since it is smaller than the sum of its proper divisors (42289961448).

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

20858416152 is a wasteful number, since it uses less digits than its factorization.

20858416152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505 (or 5501 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 42.

The spelling of 20858416152 in words is "twenty billion, eight hundred fifty-eight million, four hundred sixteen thousand, one hundred fifty-two".