65016313220457 has 12 divisors (see below), whose sum is σ = 93912547606020. Its totient is φ = 43344164886048.

The previous prime is 65016313220437. The next prime is 65016313220497. The reversal of 65016313220457 is 75402231361056.

65016313220457 is a `hidden beast` number, since 6 + 5 + 0 + 1 + 63 + 132 + 2 + 0 + 457 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8339943306816 + 56676369913641 = 2887896^2 + 7528371^2 .

It is not a de Polignac number, because 65016313220457 - 2³¹ = 65014165736809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65016313220437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7506019 + ... + 13651847.

It is an arithmetic number, because the mean of its divisors is an integer number (7826045633835).

Almost surely, 2^{65016313220457} is an apocalyptic number.

It is an amenable number.

65016313220457 is a deficient number, since it is larger than the sum of its proper divisors (28896234385563).

65016313220457 is a wasteful number, since it uses less digits than its factorization.

65016313220457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7321272 (or 7321269 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 65016313220457 in words is "sixty-five trillion, sixteen billion, three hundred thirteen million, two hundred twenty thousand, four hundred fifty-seven".