133683699950 has 24 divisors (see below), whose sum is σ = 250088991048. Its totient is φ = 53164381280.

The previous prime is 133683699913. The next prime is 133683699973. The reversal of 133683699950 is 59996386331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7718732 + ... + 7736031.

It is an arithmetic number, because the mean of its divisors is an integer number (10420374627).

Almost surely, 2^133683699950 is an apocalyptic number.

133683699950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133683699950 is a deficient number, since it is larger than the sum of its proper divisors (116405291098).

133683699950 is a wasteful number, since it uses less digits than its factorization.

133683699950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15454948 (or 15454943 counting only the distinct ones).

The product of its (nonzero) digits is 28343520, while the sum is 62.

The spelling of 133683699950 in words is "one hundred thirty-three billion, six hundred eighty-three million, six hundred ninety-nine thousand, nine hundred fifty".