162020782500 has 60 divisors (see below), whose sum is σ = 472409418096. Its totient is φ = 43205540000.

The previous prime is 162020782489. The next prime is 162020782501. The reversal of 162020782500 is 5287020261.

It is a tau number, because it is divible by the number of its divisors (60).

It is not an unprimeable number, because it can be changed into a prime (162020782501) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10793886 + ... + 10808885.

Almost surely, 2^162020782500 is an apocalyptic number.

162020782500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162020782500 is an abundant number, since it is smaller than the sum of its proper divisors (310388635596).

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

162020782500 is a wasteful number, since it uses less digits than its factorization.

162020782500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21602798 (or 21602781 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The spelling of 162020782500 in words is "one hundred sixty-two billion, twenty million, seven hundred eighty-two thousand, five hundred".