142820455020 has 48 divisors (see below), whose sum is σ = 400607665920. Its totient is φ = 38017798336.

The previous prime is 142820455009. The next prime is 142820455031. The reversal of 142820455020 is 20554028241.

It is an interprime number because it is at equal distance from previous prime (142820455009) and next prime (142820455031).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2080200 + ... + 2147759.

It is an arithmetic number, because the mean of its divisors is an integer number (8345993040).

Almost surely, 2^142820455020 is an apocalyptic number.

142820455020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142820455020 is an abundant number, since it is smaller than the sum of its proper divisors (257787210900).

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

142820455020 is a wasteful number, since it uses less digits than its factorization.

142820455020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4228534 (or 4228532 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 33.

The spelling of 142820455020 in words is "one hundred forty-two billion, eight hundred twenty million, four hundred fifty-five thousand, twenty".