133546284651 has 16 divisors (see below), whose sum is σ = 203038696224. Its totient is φ = 77348073984.

The previous prime is 133546284647. The next prime is 133546284667. The reversal of 133546284651 is 156482645331.

It is not a de Polignac number, because 133546284651 - 2² = 133546284647 is a prime.

It is a super-2 number, since 2×133546284651² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133546284651.

It is not an unprimeable number, because it can be changed into a prime (133546284691) 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, 100712976 + ... + 100714301.

It is an arithmetic number, because the mean of its divisors is an integer number (12689918514).

Almost surely, 2^133546284651 is an apocalyptic number.

133546284651 is a deficient number, since it is larger than the sum of its proper divisors (69492411573).

133546284651 is a wasteful number, since it uses less digits than its factorization.

133546284651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201427310.

The product of its digits is 2073600, while the sum is 48.

The spelling of 133546284651 in words is "one hundred thirty-three billion, five hundred forty-six million, two hundred eighty-four thousand, six hundred fifty-one".