531371866616211 has 8 divisors (see below), whose sum is σ = 750172046987664. Its totient is φ = 333409798661120.

The previous prime is 531371866616119. The next prime is 531371866616251. The reversal of 531371866616211 is 112616668173135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 531371866616211 - 2²⁹ = 531371329745299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (531371866616251) 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, 5209528104030 + ... + 5209528104131.

It is an arithmetic number, because the mean of its divisors is an integer number (93771505873458).

Almost surely, 2^{531371866616211} is an apocalyptic number.

531371866616211 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

531371866616211 is a deficient number, since it is larger than the sum of its proper divisors (218800180371453).

531371866616211 is a wasteful number, since it uses less digits than its factorization.

531371866616211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10419056208181.

The product of its digits is 6531840, while the sum is 57.

The spelling of 531371866616211 in words is "five hundred thirty-one trillion, three hundred seventy-one billion, eight hundred sixty-six million, six hundred sixteen thousand, two hundred eleven".