65712220066070 has 32 divisors (see below), whose sum is σ = 118760839575840. Its totient is φ = 26178491776000.

The previous prime is 65712220066069. The next prime is 65712220066081. The reversal of 65712220066070 is 7066002221756.

It is a super-2 number, since 2×65712220066070² (a number of 28 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 in 15 ways as a sum of consecutive naturals, for example, 38760326 + ... + 40420134.

It is an arithmetic number, because the mean of its divisors is an integer number (3711276236745).

Almost surely, 2^{65712220066070} is an apocalyptic number.

65712220066070 is a deficient number, since it is larger than the sum of its proper divisors (53048619509770).

65712220066070 is a wasteful number, since it uses less digits than its factorization.

65712220066070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675840.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 65712220066070 in words is "sixty-five trillion, seven hundred twelve billion, two hundred twenty million, sixty-six thousand, seventy".