133530077161 has 16 divisors (see below), whose sum is σ = 144746691264. Its totient is φ = 122449598784.

The previous prime is 133530077141. The next prime is 133530077189. The reversal of 133530077161 is 161770035331.

It is a cyclic number.

It is not a de Polignac number, because 133530077161 - 2⁵ = 133530077129 is a prime.

It is a super-2 number, since 2×133530077161² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133530077161.

It is not an unprimeable number, because it can be changed into a prime (133530077141) 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, 2916730 + ... + 2962156.

It is an arithmetic number, because the mean of its divisors is an integer number (9046668204).

Almost surely, 2^133530077161 is an apocalyptic number.

It is an amenable number.

133530077161 is a deficient number, since it is larger than the sum of its proper divisors (11216614103).

133530077161 is a wasteful number, since it uses less digits than its factorization.

133530077161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46920.

The product of its (nonzero) digits is 39690, while the sum is 37.

The spelling of 133530077161 in words is "one hundred thirty-three billion, five hundred thirty million, seventy-seven thousand, one hundred sixty-one".