164244663401552 has 40 divisors (see below), whose sum is σ = 325093277520000. Its totient is φ = 80350683375872.

The previous prime is 164244663401551. The next prime is 164244663401657. The reversal of 164244663401552 is 255104366442461.

It is a super-2 number, since 2×164244663401552² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164244663401494 and 164244663401503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164244663401551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30621677 + ... + 35583372.

It is an arithmetic number, because the mean of its divisors is an integer number (8127331938000).

Almost surely, 2^{164244663401552} is an apocalyptic number.

It is an amenable number.

164244663401552 is a deficient number, since it is larger than the sum of its proper divisors (160848614118448).

164244663401552 is a wasteful number, since it uses less digits than its factorization.

164244663401552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66208403 (or 66208397 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 53.

The spelling of 164244663401552 in words is "one hundred sixty-four trillion, two hundred forty-four billion, six hundred sixty-three million, four hundred one thousand, five hundred fifty-two".