164451433024240 has 40 divisors (see below), whose sum is σ = 384161665146768. Its totient is φ = 65468816931840.

The previous prime is 164451433024189. The next prime is 164451433024243. The reversal of 164451433024240 is 42420334154461.

164451433024240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164451433024243) 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, 4871174857 + ... + 4871208616.

Almost surely, 2^{164451433024240} is an apocalyptic number.

164451433024240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164451433024240 is an abundant number, since it is smaller than the sum of its proper divisors (219710232122528).

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

164451433024240 is a wasteful number, since it uses less digits than its factorization.

164451433024240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9742383697 (or 9742383691 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 43.

The spelling of 164451433024240 in words is "one hundred sixty-four trillion, four hundred fifty-one billion, four hundred thirty-three million, twenty-four thousand, two hundred forty".