133016656501 has 4 divisors (see below), whose sum is σ = 133444363104. Its totient is φ = 132588949900.

The previous prime is 133016656471. The next prime is 133016656583. The reversal of 133016656501 is 105656610331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133016656501 - 2¹⁹ = 133016132213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133016651501) 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, 213852835 + ... + 213853456.

It is an arithmetic number, because the mean of its divisors is an integer number (33361090776).

Almost surely, 2^133016656501 is an apocalyptic number.

It is an amenable number.

133016656501 is a deficient number, since it is larger than the sum of its proper divisors (427706603).

133016656501 is an equidigital number, since it uses as much as digits as its factorization.

133016656501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427706602.

The product of its (nonzero) digits is 48600, while the sum is 37.

The spelling of 133016656501 in words is "one hundred thirty-three billion, sixteen million, six hundred fifty-six thousand, five hundred one".