133515011755 has 4 divisors (see below), whose sum is σ = 160218014112. Its totient is φ = 106812009400.

The previous prime is 133515011737. The next prime is 133515011771. The reversal of 133515011755 is 557110515331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 557110515331 = 170857 ⋅3260683.

It is not a de Polignac number, because 133515011755 - 2¹⁷ = 133514880683 is a prime.

It is a Duffinian 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, 13351501171 + ... + 13351501180.

It is an arithmetic number, because the mean of its divisors is an integer number (40054503528).

Almost surely, 2^133515011755 is an apocalyptic number.

133515011755 is a deficient number, since it is larger than the sum of its proper divisors (26703002357).

133515011755 is an equidigital number, since it uses as much as digits as its factorization.

133515011755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26703002356.

The product of its (nonzero) digits is 39375, while the sum is 37.

The spelling of 133515011755 in words is "one hundred thirty-three billion, five hundred fifteen million, eleven thousand, seven hundred fifty-five".