20192918192020 has 24 divisors (see below), whose sum is σ = 48463003661184. Its totient is φ = 6923286237216.

The previous prime is 20192918191939. The next prime is 20192918192021. The reversal of 20192918192020 is 2029181929102.

It is a happy number.

It is a super-2 number, since 2×20192918192020² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20192918192021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72117564832 + ... + 72117565111.

It is an arithmetic number, because the mean of its divisors is an integer number (2019291819216).

Almost surely, 2^{20192918192020} is an apocalyptic number.

20192918192020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20192918192020 is an abundant number, since it is smaller than the sum of its proper divisors (28270085469164).

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

20192918192020 is a wasteful number, since it uses less digits than its factorization.

20192918192020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144235129959 (or 144235129957 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 46.

The spelling of 20192918192020 in words is "twenty trillion, one hundred ninety-two billion, nine hundred eighteen million, one hundred ninety-two thousand, twenty".