65220138442296 has 128 divisors (see below), whose sum is σ = 190715195520000. Its totient is φ = 20594425271040.

The previous prime is 65220138442253. The next prime is 65220138442307. The reversal of 65220138442296 is 69224483102256.

65220138442296 is a `hidden beast` number, since 6 + 5 + 2 + 201 + 3 + 8 + 4 + 422 + 9 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 60330660 + ... + 61402188.

It is an arithmetic number, because the mean of its divisors is an integer number (1489962465000).

Almost surely, 2^{65220138442296} is an apocalyptic number.

It is an amenable number.

65220138442296 is an abundant number, since it is smaller than the sum of its proper divisors (125495057077704).

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

65220138442296 is a wasteful number, since it uses less digits than its factorization.

65220138442296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086394 (or 1086384 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 54.

The spelling of 65220138442296 in words is "sixty-five trillion, two hundred twenty billion, one hundred thirty-eight million, four hundred forty-two thousand, two hundred ninety-six".