133923689616 has 20 divisors (see below), whose sum is σ = 345969531632. Its totient is φ = 44641229856.

The previous prime is 133923689611. The next prime is 133923689621. The reversal of 133923689616 is 616986329331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (133923689611) and next prime (133923689621).

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (133923689611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1395038386 + ... + 1395038481.

Almost surely, 2^133923689616 is an apocalyptic number.

133923689616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

133923689616 is an abundant number, since it is smaller than the sum of its proper divisors (212045842016).

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

133923689616 is a wasteful number, since it uses less digits than its factorization.

133923689616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790076878 (or 2790076872 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 57.

The spelling of 133923689616 in words is "one hundred thirty-three billion, nine hundred twenty-three million, six hundred eighty-nine thousand, six hundred sixteen".