164201215465 has 16 divisors (see below), whose sum is σ = 237042357120. Its totient is φ = 106669059840.

The previous prime is 164201215439. The next prime is 164201215481. The reversal of 164201215465 is 564512102461.

It is not a de Polignac number, because 164201215465 - 2¹¹ = 164201213417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123458896 + ... + 123460225.

It is an arithmetic number, because the mean of its divisors is an integer number (14815147320).

Almost surely, 2^164201215465 is an apocalyptic number.

It is an amenable number.

164201215465 is a deficient number, since it is larger than the sum of its proper divisors (72841141655).

164201215465 is a wasteful number, since it uses less digits than its factorization.

164201215465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246919152.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 164201215465 in words is "one hundred sixty-four billion, two hundred one million, two hundred fifteen thousand, four hundred sixty-five".