165497469247 has 8 divisors (see below), whose sum is σ = 181158883920. Its totient is φ = 149938752960.

The previous prime is 165497469239. The next prime is 165497469251. The reversal of 165497469247 is 742964794561.

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 165497469247 - 2³ = 165497469239 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 (165497469257) 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, 25671222 + ... + 25677667.

It is an arithmetic number, because the mean of its divisors is an integer number (22644860490).

Almost surely, 2^165497469247 is an apocalyptic number.

165497469247 is a deficient number, since it is larger than the sum of its proper divisors (15661414673).

165497469247 is a wasteful number, since it uses less digits than its factorization.

165497469247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51349193.

The product of its digits is 91445760, while the sum is 64.

The spelling of 165497469247 in words is "one hundred sixty-five billion, four hundred ninety-seven million, four hundred sixty-nine thousand, two hundred forty-seven".