164424867656 has 32 divisors (see below), whose sum is σ = 359529600000. Its totient is φ = 70467799248.

The previous prime is 164424867641. The next prime is 164424867671. The reversal of 164424867656 is 656768424461.

It is an interprime number because it is at equal distance from previous prime (164424867641) and next prime (164424867671).

It is a super-3 number, since 3×164424867656³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 164424867595 and 164424867604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29958056 + ... + 29963543.

It is an arithmetic number, because the mean of its divisors is an integer number (11235300000).

Almost surely, 2^164424867656 is an apocalyptic number.

It is an amenable number.

164424867656 is an abundant number, since it is smaller than the sum of its proper divisors (195104732344).

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

164424867656 is an equidigital number, since it uses as much as digits as its factorization.

164424867656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59921626 (or 59921608 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 59.

The spelling of 164424867656 in words is "one hundred sixty-four billion, four hundred twenty-four million, eight hundred sixty-seven thousand, six hundred fifty-six".