65720010650502 has 64 divisors (see below), whose sum is σ = 142573695747840. Its totient is φ = 20075421953664.

The previous prime is 65720010650377. The next prime is 65720010650513. The reversal of 65720010650502 is 20505601002756.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 425937573 + ... + 426091839.

It is an arithmetic number, because the mean of its divisors is an integer number (2227713996060).

Almost surely, 2^{65720010650502} is an apocalyptic number.

65720010650502 is an abundant number, since it is smaller than the sum of its proper divisors (76853685097338).

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

65720010650502 is a wasteful number, since it uses less digits than its factorization.

65720010650502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193717.

The product of its (nonzero) digits is 126000, while the sum is 39.

The spelling of 65720010650502 in words is "sixty-five trillion, seven hundred twenty billion, ten million, six hundred fifty thousand, five hundred two".