164089442627 has 4 divisors (see below), whose sum is σ = 179006664696. Its totient is φ = 149172220560.

The previous prime is 164089442617. The next prime is 164089442707. The reversal of 164089442627 is 726244980461.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 164089442627 - 2¹² = 164089438531 is a prime.

It is a super-2 number, since 2×164089442627² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164089442617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7458611018 + ... + 7458611039.

It is an arithmetic number, because the mean of its divisors is an integer number (44751666174).

Almost surely, 2^164089442627 is an apocalyptic number.

164089442627 is a deficient number, since it is larger than the sum of its proper divisors (14917222069).

164089442627 is a wasteful number, since it uses less digits than its factorization.

164089442627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14917222068.

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 164089442627 in words is "one hundred sixty-four billion, eighty-nine million, four hundred forty-two thousand, six hundred twenty-seven".