133265145556 has 12 divisors (see below), whose sum is σ = 233303138068. Its totient is φ = 66607106112.

The previous prime is 133265145539. The next prime is 133265145557. The reversal of 133265145556 is 655541562331.

It can be written as a sum of positive squares in 2 ways, for example, as 58782002500 + 74483143056 = 242450^2 + 272916^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133265145557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6354891 + ... + 6375826.

Almost surely, 2^133265145556 is an apocalyptic number.

It is an amenable number.

133265145556 is a deficient number, since it is larger than the sum of its proper divisors (100037992512).

133265145556 is a wasteful number, since it uses less digits than its factorization.

133265145556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12733338 (or 12733336 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 46.

The spelling of 133265145556 in words is "one hundred thirty-three billion, two hundred sixty-five million, one hundred forty-five thousand, five hundred fifty-six".