133456412652161 has 16 divisors (see below), whose sum is σ = 147451481063424. Its totient is φ = 120144155687424.

The previous prime is 133456412652149. The next prime is 133456412652169. The reversal of 133456412652161 is 161256214654331.

It is a cyclic number.

It is not a de Polignac number, because 133456412652161 - 2²² = 133456408457857 is a prime.

It is a super-2 number, since 2×133456412652161² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133456412652169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67490645 + ... + 69439901.

It is an arithmetic number, because the mean of its divisors is an integer number (9215717566464).

Almost surely, 2^{133456412652161} is an apocalyptic number.

It is an amenable number.

133456412652161 is a deficient number, since it is larger than the sum of its proper divisors (13995068411263).

133456412652161 is a wasteful number, since it uses less digits than its factorization.

133456412652161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124400.

The product of its digits is 3110400, while the sum is 50.

The spelling of 133456412652161 in words is "one hundred thirty-three trillion, four hundred fifty-six billion, four hundred twelve million, six hundred fifty-two thousand, one hundred sixty-one".