180317135455385 has 16 divisors (see below), whose sum is σ = 229109238773136. Its totient is φ = 135767954423808.

The previous prime is 180317135455361. The next prime is 180317135455399. The reversal of 180317135455385 is 583554531713081.

It can be written as a sum of positive squares in 8 ways, for example, as 48552173907721 + 131764961547664 = 6967939^2 + 11478892^2 .

It is not a de Polignac number, because 180317135455385 - 2³⁸ = 180042257548441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56815547 + ... + 59905263.

It is an arithmetic number, because the mean of its divisors is an integer number (14319327423321).

Almost surely, 2^{180317135455385} is an apocalyptic number.

It is an amenable number.

180317135455385 is a deficient number, since it is larger than the sum of its proper divisors (48792103317751).

180317135455385 is a wasteful number, since it uses less digits than its factorization.

180317135455385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3776332.

The product of its (nonzero) digits is 30240000, while the sum is 59.

The spelling of 180317135455385 in words is "one hundred eighty trillion, three hundred seventeen billion, one hundred thirty-five million, four hundred fifty-five thousand, three hundred eighty-five".