131165657362 has 4 divisors (see below), whose sum is σ = 196748486046. Its totient is φ = 65582828680.

The previous prime is 131165657353. The next prime is 131165657377. The reversal of 131165657362 is 263756561131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 263756561131 = 7 ⋅37679508733.

It can be written as a sum of positive squares in only one way, i.e., 110404017441 + 20761639921 = 332271^2 + 144089^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32791414339 + ... + 32791414342.

Almost surely, 2^131165657362 is an apocalyptic number.

131165657362 is a deficient number, since it is larger than the sum of its proper divisors (65582828684).

131165657362 is an equidigital number, since it uses as much as digits as its factorization.

131165657362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65582828683.

The product of its digits is 680400, while the sum is 46.

The spelling of 131165657362 in words is "one hundred thirty-one billion, one hundred sixty-five million, six hundred fifty-seven thousand, three hundred sixty-two".