133764603500 has 96 divisors (see below), whose sum is σ = 323189927424. Its totient is φ = 47956440000.

The previous prime is 133764603499. The next prime is 133764603509. The reversal of 133764603500 is 5306467331.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (133764603509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219227 + ... + 561773.

It is an arithmetic number, because the mean of its divisors is an integer number (3366561744).

Almost surely, 2^133764603500 is an apocalyptic number.

133764603500 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 133764603500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161594963712).

133764603500 is an abundant number, since it is smaller than the sum of its proper divisors (189425323924).

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

133764603500 is a wasteful number, since it uses less digits than its factorization.

133764603500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342648 (or 342636 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 38.

The spelling of 133764603500 in words is "one hundred thirty-three billion, seven hundred sixty-four million, six hundred three thousand, five hundred".