164253200636561 has 8 divisors (see below), whose sum is σ = 165039643024704. Its totient is φ = 163466833637520.

The previous prime is 164253200636513. The next prime is 164253200636563. The reversal of 164253200636561 is 165636002352461.

164253200636561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164253200636561 is a prime.

It is a super-2 number, since 2×164253200636561² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164253200636563) 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, 14476946 + ... + 23196731.

It is an arithmetic number, because the mean of its divisors is an integer number (20629955378088).

Almost surely, 2^{164253200636561} is an apocalyptic number.

It is an amenable number.

164253200636561 is a deficient number, since it is larger than the sum of its proper divisors (786442388143).

164253200636561 is a wasteful number, since it uses less digits than its factorization.

164253200636561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37694551.

The product of its (nonzero) digits is 4665600, while the sum is 50.

The spelling of 164253200636561 in words is "one hundred sixty-four trillion, two hundred fifty-three billion, two hundred million, six hundred thirty-six thousand, five hundred sixty-one".