65221201063 has 16 divisors (see below), whose sum is σ = 70757051904. Its totient is φ = 59882682240.

The previous prime is 65221201061. The next prime is 65221201079. The reversal of 65221201063 is 36010212256.

It is not a de Polignac number, because 65221201063 - 2¹ = 65221201061 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 (65221201061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112348 + ... + 378238.

It is an arithmetic number, because the mean of its divisors is an integer number (4422315744).

Almost surely, 2^65221201063 is an apocalyptic number.

65221201063 is a deficient number, since it is larger than the sum of its proper divisors (5535850841).

65221201063 is a wasteful number, since it uses less digits than its factorization.

65221201063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266262.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 65221201063 in words is "sixty-five billion, two hundred twenty-one million, two hundred one thousand, sixty-three".