133612205451 has 8 divisors (see below), whose sum is σ = 179179374480. Its totient is φ = 88559920032.

The previous prime is 133612205437. The next prime is 133612205471. The reversal of 133612205451 is 154502216331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133612205451 - 2⁶ = 133612205387 is a prime.

It is a super-2 number, since 2×133612205451² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133612205471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128720296 + ... + 128721333.

It is an arithmetic number, because the mean of its divisors is an integer number (22397421810).

Almost surely, 2^133612205451 is an apocalyptic number.

133612205451 is a deficient number, since it is larger than the sum of its proper divisors (45567169029).

133612205451 is a wasteful number, since it uses less digits than its factorization.

133612205451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257441805.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 133612205451 in words is "one hundred thirty-three billion, six hundred twelve million, two hundred five thousand, four hundred fifty-one".