520155401073071 has 16 divisors (see below), whose sum is σ = 529924359214080. Its totient is φ = 510484403116800.

The previous prime is 520155401073059. The next prime is 520155401073089. The reversal of 520155401073071 is 170370104551025.

It is a cyclic number.

It is not a de Polignac number, because 520155401073071 - 2²⁶ = 520155333964207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520155401073571) 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, 4411736 + ... + 32554173.

It is an arithmetic number, because the mean of its divisors is an integer number (33120272450880).

Almost surely, 2^{520155401073071} is an apocalyptic number.

520155401073071 is a deficient number, since it is larger than the sum of its proper divisors (9768958141009).

520155401073071 is a wasteful number, since it uses less digits than its factorization.

520155401073071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36967234.

The product of its (nonzero) digits is 147000, while the sum is 41.

The spelling of 520155401073071 in words is "five hundred twenty trillion, one hundred fifty-five billion, four hundred one million, seventy-three thousand, seventy-one".