164404543441516 has 48 divisors (see below), whose sum is σ = 346642300601856. Its totient is φ = 66700850793984.

The previous prime is 164404543441499. The next prime is 164404543441543. The reversal of 164404543441516 is 615144345404461.

It is a happy number.

It is a super-3 number, since 3×164404543441516³ (a number of 44 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1315847626 + ... + 1315972561.

It is an arithmetic number, because the mean of its divisors is an integer number (7221714595872).

Almost surely, 2^{164404543441516} is an apocalyptic number.

It is an amenable number.

164404543441516 is an abundant number, since it is smaller than the sum of its proper divisors (182237757160340).

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

164404543441516 is a wasteful number, since it uses less digits than its factorization.

164404543441516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2631820318 (or 2631820316 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 52.

Adding to 164404543441516 its reverse (615144345404461), we get a palindrome (779548888845977).

The spelling of 164404543441516 in words is "one hundred sixty-four trillion, four hundred four billion, five hundred forty-three million, four hundred forty-one thousand, five hundred sixteen".