131330352464 has 10 divisors (see below), whose sum is σ = 254452557930. Its totient is φ = 65665176224.

The previous prime is 131330352457. The next prime is 131330352497. The reversal of 131330352464 is 464253033131.

It can be written as a sum of positive squares in only one way, i.e., 79519488064 + 51810864400 = 281992^2 + 227620^2 .

It is a super-2 number, since 2×131330352464² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4104073499 + ... + 4104073530.

It is an arithmetic number, because the mean of its divisors is an integer number (25445255793).

Almost surely, 2^131330352464 is an apocalyptic number.

It is an amenable number.

131330352464 is a deficient number, since it is larger than the sum of its proper divisors (123122205466).

131330352464 is an equidigital number, since it uses as much as digits as its factorization.

131330352464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8208147037 (or 8208147031 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 35.

Adding to 131330352464 its reverse (464253033131), we get a palindrome (595583385595).

The spelling of 131330352464 in words is "one hundred thirty-one billion, three hundred thirty million, three hundred fifty-two thousand, four hundred sixty-four".