521160654342 has 16 divisors (see below), whose sum is σ = 1042338845952. Its totient is φ = 173717295240.

The previous prime is 521160654319. The next prime is 521160654349. The reversal of 521160654342 is 243456061125.

It is a self number, because there is not a number n which added to its sum of digits gives 521160654342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521160654349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327258 + ... + 1072109.

It is an arithmetic number, because the mean of its divisors is an integer number (65146177872).

Almost surely, 2^521160654342 is an apocalyptic number.

521160654342 is an abundant number, since it is smaller than the sum of its proper divisors (521178191610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

521160654342 is a wasteful number, since it uses less digits than its factorization.

521160654342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461443.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 521160654342 in words is "five hundred twenty-one billion, one hundred sixty million, six hundred fifty-four thousand, three hundred forty-two".