133770556500 has 192 divisors, whose sum is σ = 456048133632. Its totient is φ = 29830272000.

The previous prime is 133770556487. The next prime is 133770556559. The reversal of 133770556500 is 5655077331.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 275134 + ... + 585866.

It is an arithmetic number, because the mean of its divisors is an integer number (2375250696).

Almost surely, 2^133770556500 is an apocalyptic number.

133770556500 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 133770556500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228024066816).

133770556500 is an abundant number, since it is smaller than the sum of its proper divisors (322277577132).

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

133770556500 is a wasteful number, since it uses less digits than its factorization.

133770556500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310803 (or 310791 counting only the distinct ones).

The product of its (nonzero) digits is 330750, while the sum is 42.

The spelling of 133770556500 in words is "one hundred thirty-three billion, seven hundred seventy million, five hundred fifty-six thousand, five hundred".