65055175021 has 8 divisors (see below), whose sum is σ = 66596624864. Its totient is φ = 63515022480.

The previous prime is 65055175007. The next prime is 65055175057. The reversal of 65055175021 is 12057155056.

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 65055175021 - 2¹⁵ = 65055142253 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 (65055173021) 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, 222471 + ... + 423796.

It is an arithmetic number, because the mean of its divisors is an integer number (8324578108).

Almost surely, 2^65055175021 is an apocalyptic number.

It is an amenable number.

65055175021 is a deficient number, since it is larger than the sum of its proper divisors (1541449843).

65055175021 is a wasteful number, since it uses less digits than its factorization.

65055175021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648651.

The product of its (nonzero) digits is 52500, while the sum is 37.

The spelling of 65055175021 in words is "sixty-five billion, fifty-five million, one hundred seventy-five thousand, twenty-one".