133552416631 has 4 divisors (see below), whose sum is σ = 133581948552. Its totient is φ = 133522884712.

The previous prime is 133552416623. The next prime is 133552416637. The reversal of 133552416631 is 136614255331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133552416631 - 2³ = 133552416623 is a prime.

It is a super-2 number, since 2×133552416631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133552416637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14759176 + ... + 14768221.

It is an arithmetic number, because the mean of its divisors is an integer number (33395487138).

Almost surely, 2^133552416631 is an apocalyptic number.

133552416631 is a deficient number, since it is larger than the sum of its proper divisors (29531921).

133552416631 is an equidigital number, since it uses as much as digits as its factorization.

133552416631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29531920.

The product of its digits is 194400, while the sum is 40.

The spelling of 133552416631 in words is "one hundred thirty-three billion, five hundred fifty-two million, four hundred sixteen thousand, six hundred thirty-one".