164424726772 has 96 divisors (see below), whose sum is σ = 320072014080. Its totient is φ = 73556398080.

The previous prime is 164424726769. The next prime is 164424726793. The reversal of 164424726772 is 277627424461.

It is a happy number.

It is a super-3 number, since 3×164424726772³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94441822 + ... + 94443562.

It is an arithmetic number, because the mean of its divisors is an integer number (3334083480).

Almost surely, 2^164424726772 is an apocalyptic number.

It is an amenable number.

164424726772 is a deficient number, since it is larger than the sum of its proper divisors (155647287308).

164424726772 is a wasteful number, since it uses less digits than its factorization.

164424726772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441 (or 2439 counting only the distinct ones).

The product of its digits is 6322176, while the sum is 52.

The spelling of 164424726772 in words is "one hundred sixty-four billion, four hundred twenty-four million, seven hundred twenty-six thousand, seven hundred seventy-two".