234520155640405 has 16 divisors (see below), whose sum is σ = 298004022388800. Its totient is φ = 176564787557632.

The previous prime is 234520155640273. The next prime is 234520155640409. The reversal of 234520155640405 is 504046551025432.

It is a cyclic number.

It is not a de Polignac number, because 234520155640405 - 2¹⁵ = 234520155607637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234520155640409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116924239 + ... + 118913068.

It is an arithmetic number, because the mean of its divisors is an integer number (18625251399300).

Almost surely, 2^{234520155640405} is an apocalyptic number.

It is an amenable number.

234520155640405 is a deficient number, since it is larger than the sum of its proper divisors (63483866748395).

234520155640405 is a wasteful number, since it uses less digits than its factorization.

234520155640405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235849028.

The product of its (nonzero) digits is 2880000, while the sum is 46.

The spelling of 234520155640405 in words is "two hundred thirty-four trillion, five hundred twenty billion, one hundred fifty-five million, six hundred forty thousand, four hundred five".