164720752752 has 20 divisors (see below), whose sum is σ = 425528611400. Its totient is φ = 54906917568.

The previous prime is 164720752723. The next prime is 164720752831. The reversal of 164720752752 is 257257027461.

It is a happy number.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 3431682349 = 164720752752 / (1 + 6 + 4 + 7 + 2 + 0 + 7 + 5 + 2 + 7 + 5 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1715841127 + ... + 1715841222.

It is an arithmetic number, because the mean of its divisors is an integer number (21276430570).

Almost surely, 2^164720752752 is an apocalyptic number.

164720752752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

164720752752 is an abundant number, since it is smaller than the sum of its proper divisors (260807858648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164720752752 is a wasteful number, since it uses less digits than its factorization.

164720752752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3431682360 (or 3431682354 counting only the distinct ones).

The product of its (nonzero) digits is 1646400, while the sum is 48.

The spelling of 164720752752 in words is "one hundred sixty-four billion, seven hundred twenty million, seven hundred fifty-two thousand, seven hundred fifty-two".