134808505020 has 432 divisors, whose sum is σ = 504983082240. Its totient is φ = 28924858368.

The previous prime is 134808504991. The next prime is 134808505057. The reversal of 134808505020 is 20505808431.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 71820322 + ... + 71822198.

It is an arithmetic number, because the mean of its divisors is an integer number (1168942320).

Almost surely, 2^134808505020 is an apocalyptic number.

134808505020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134808505020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252491541120).

134808505020 is an abundant number, since it is smaller than the sum of its proper divisors (370174577220).

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

134808505020 is a wasteful number, since it uses less digits than its factorization.

134808505020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402 (or 2390 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 134808505020 in words is "one hundred thirty-four billion, eight hundred eight million, five hundred five thousand, twenty".