133531364656166 has 8 divisors (see below), whose sum is σ = 205710480686640. Its totient is φ = 64961204427288.

The previous prime is 133531364656127. The next prime is 133531364656181. The reversal of 133531364656166 is 661656463135331.

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

It is a super-2 number, since 2×133531364656166² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 902238950306 + ... + 902238950453.

It is an arithmetic number, because the mean of its divisors is an integer number (25713810085830).

Almost surely, 2^{133531364656166} is an apocalyptic number.

133531364656166 is a deficient number, since it is larger than the sum of its proper divisors (72179116030474).

133531364656166 is a wasteful number, since it uses less digits than its factorization.

133531364656166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804477900798.

The product of its digits is 62985600, while the sum is 59.

The spelling of 133531364656166 in words is "one hundred thirty-three trillion, five hundred thirty-one billion, three hundred sixty-four million, six hundred fifty-six thousand, one hundred sixty-six".