131353177616 has 20 divisors (see below), whose sum is σ = 256831617900. Its totient is φ = 65074050432.

The previous prime is 131353177601. The next prime is 131353177633. The reversal of 131353177616 is 616771353131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61456393216 + 69896784400 = 247904^2 + 264380^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37656851 + ... + 37660338.

It is an arithmetic number, because the mean of its divisors is an integer number (12841580895).

Almost surely, 2^131353177616 is an apocalyptic number.

131353177616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131353177616 is a deficient number, since it is larger than the sum of its proper divisors (125478440284).

131353177616 is a wasteful number, since it uses less digits than its factorization.

131353177616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75317306 (or 75317300 counting only the distinct ones).

The product of its digits is 238140, while the sum is 44.

The spelling of 131353177616 in words is "one hundred thirty-one billion, three hundred fifty-three million, one hundred seventy-seven thousand, six hundred sixteen".