133526232653561 has 16 divisors (see below), whose sum is σ = 147213732540096. Its totient is φ = 120098598600000.

The previous prime is 133526232653551. The next prime is 133526232653651. The reversal of 133526232653561 is 165356232625331.

It is a cyclic number.

It is not a de Polignac number, because 133526232653561 - 2³⁴ = 133509052784377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133526232653501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41979695 + ... + 45048276.

It is an arithmetic number, because the mean of its divisors is an integer number (9200858283756).

Almost surely, 2^{133526232653561} is an apocalyptic number.

133526232653561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133526232653561 is a deficient number, since it is larger than the sum of its proper divisors (13687499886535).

133526232653561 is a wasteful number, since it uses less digits than its factorization.

133526232653561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87029464.

The product of its digits is 17496000, while the sum is 53.

The spelling of 133526232653561 in words is "one hundred thirty-three trillion, five hundred twenty-six billion, two hundred thirty-two million, six hundred fifty-three thousand, five hundred sixty-one".