65221207002071 has 8 divisors (see below), whose sum is σ = 65612138465664. Its totient is φ = 64830280125880.

The previous prime is 65221207002053. The next prime is 65221207002101. The reversal of 65221207002071 is 17020070212256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65221207002071 - 2²⁶ = 65221139893207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65221207002871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29881436 + ... + 31989726.

It is an arithmetic number, because the mean of its divisors is an integer number (8201517308208).

Almost surely, 2^{65221207002071} is an apocalyptic number.

65221207002071 is a deficient number, since it is larger than the sum of its proper divisors (390931463593).

65221207002071 is a wasteful number, since it uses less digits than its factorization.

65221207002071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293701.

The product of its (nonzero) digits is 23520, while the sum is 35.

The spelling of 65221207002071 in words is "sixty-five trillion, two hundred twenty-one billion, two hundred seven million, two thousand, seventy-one".