133603552551 has 32 divisors (see below), whose sum is σ = 217696370688. Its totient is φ = 71142566400.

The previous prime is 133603552541. The next prime is 133603552561. The reversal of 133603552551 is 155255306331.

It is an interprime number because it is at equal distance from previous prime (133603552541) and next prime (133603552561).

It is not a de Polignac number, because 133603552551 - 2¹⁸ = 133603290407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133603552531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1816615 + ... + 1888728.

It is an arithmetic number, because the mean of its divisors is an integer number (6803011584).

Almost surely, 2^133603552551 is an apocalyptic number.

133603552551 is a deficient number, since it is larger than the sum of its proper divisors (84092818137).

133603552551 is a wasteful number, since it uses less digits than its factorization.

133603552551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3705471.

The product of its (nonzero) digits is 202500, while the sum is 39.

Adding to 133603552551 its reverse (155255306331), we get a palindrome (288858858882).

The spelling of 133603552551 in words is "one hundred thirty-three billion, six hundred three million, five hundred fifty-two thousand, five hundred fifty-one".