65857343080 has 16 divisors (see below), whose sum is σ = 148179022020. Its totient is φ = 26342937216.

The previous prime is 65857343039. The next prime is 65857343081. The reversal of 65857343080 is 8034375856.

It can be written as a sum of positive squares in 2 ways, for example, as 64113278436 + 1744064644 = 253206^2 + 41762^2 .

It is not an unprimeable number, because it can be changed into a prime (65857343081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 823216749 + ... + 823216828.

Almost surely, 2^65857343080 is an apocalyptic number.

It is an amenable number.

65857343080 is an abundant number, since it is smaller than the sum of its proper divisors (82321678940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65857343080 is a wasteful number, since it uses less digits than its factorization.

65857343080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646433588 (or 1646433584 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 65857343080 in words is "sixty-five billion, eight hundred fifty-seven million, three hundred forty-three thousand, eighty".