164621366016 has 144 divisors (see below), whose sum is σ = 445221463680. Its totient is φ = 53991424000.

The previous prime is 164621366009. The next prime is 164621366047. The reversal of 164621366016 is 610663126461.

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, 15994600 + ... + 16004888.

It is an arithmetic number, because the mean of its divisors is an integer number (3091815720).

Almost surely, 2^164621366016 is an apocalyptic number.

164621366016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164621366016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222610731840).

164621366016 is an abundant number, since it is smaller than the sum of its proper divisors (280600097664).

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

164621366016 is a wasteful number, since it uses less digits than its factorization.

164621366016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10642 (or 10628 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 164621366016 in words is "one hundred sixty-four billion, six hundred twenty-one million, three hundred sixty-six thousand, sixteen".