171420396065 has 8 divisors (see below), whose sum is σ = 205706704128. Its totient is φ = 137134830960.

The previous prime is 171420396041. The next prime is 171420396101. The reversal of 171420396065 is 560693024171.

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

It is a de Polignac number, because none of the positive numbers 2^k-171420396065 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755330 + ... + 955700.

It is an arithmetic number, because the mean of its divisors is an integer number (25713338016).

Almost surely, 2^171420396065 is an apocalyptic number.

It is an amenable number.

171420396065 is a deficient number, since it is larger than the sum of its proper divisors (34286308063).

171420396065 is a wasteful number, since it uses less digits than its factorization.

171420396065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371479.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 171420396065 in words is "one hundred seventy-one billion, four hundred twenty million, three hundred ninety-six thousand, sixty-five".