131066454352561 has 16 divisors (see below), whose sum is σ = 166875061248000. Its totient is φ = 100125036744768.

The previous prime is 131066454352553. The next prime is 131066454352607. The reversal of 131066454352561 is 165253454660131.

It is not a de Polignac number, because 131066454352561 - 2³ = 131066454352553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131066454352499 and 131066454352508.

It is not an unprimeable number, because it can be changed into a prime (131066454355561) 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, 24832595761 + ... + 24832601038.

It is an arithmetic number, because the mean of its divisors is an integer number (10429691328000).

Almost surely, 2^{131066454352561} is an apocalyptic number.

It is an amenable number.

131066454352561 is a deficient number, since it is larger than the sum of its proper divisors (35808606895439).

131066454352561 is a wasteful number, since it uses less digits than its factorization.

131066454352561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49665196848.

The product of its (nonzero) digits is 7776000, while the sum is 52.

The spelling of 131066454352561 in words is "one hundred thirty-one trillion, sixty-six billion, four hundred fifty-four million, three hundred fifty-two thousand, five hundred sixty-one".