133228864550 has 12 divisors (see below), whose sum is σ = 247805688156. Its totient is φ = 53291545800.

The previous prime is 133228864537. The next prime is 133228864577. The reversal of 133228864550 is 55468822331.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 133228864495 and 133228864504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1332288596 + ... + 1332288695.

It is an arithmetic number, because the mean of its divisors is an integer number (20650474013).

Almost surely, 2^133228864550 is an apocalyptic number.

133228864550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133228864550 is a deficient number, since it is larger than the sum of its proper divisors (114576823606).

133228864550 is a wasteful number, since it uses less digits than its factorization.

133228864550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664577303 (or 2664577298 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 133228864550 in words is "one hundred thirty-three billion, two hundred twenty-eight million, eight hundred sixty-four thousand, five hundred fifty".