65857342740 has 96 divisors (see below), whose sum is σ = 213630493440. Its totient is φ = 14846893056.

The previous prime is 65857342739. The next prime is 65857342757. The reversal of 65857342740 is 4724375856.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1043335 + ... + 1104654.

It is an arithmetic number, because the mean of its divisors is an integer number (2225317640).

Almost surely, 2^65857342740 is an apocalyptic number.

65857342740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65857342740 is an abundant number, since it is smaller than the sum of its proper divisors (147773150700).

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

65857342740 is a wasteful number, since it uses less digits than its factorization.

65857342740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148081 (or 2148079 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 51.

The spelling of 65857342740 in words is "sixty-five billion, eight hundred fifty-seven million, three hundred forty-two thousand, seven hundred forty".