164345562565040 has 40 divisors (see below), whose sum is σ = 384633919303008. Its totient is φ = 65302872537600.

The previous prime is 164345562565021. The next prime is 164345562565049. The reversal of 164345562565040 is 40565265543461.

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

It is not an unprimeable number, because it can be changed into a prime (164345562565049) 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, 6802370477 + ... + 6802394636.

Almost surely, 2^{164345562565040} is an apocalyptic number.

164345562565040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164345562565040 is an abundant number, since it is smaller than the sum of its proper divisors (220288356737968).

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

164345562565040 is a wasteful number, since it uses less digits than its factorization.

164345562565040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13604765277 (or 13604765271 counting only the distinct ones).

The product of its (nonzero) digits is 51840000, while the sum is 56.

The spelling of 164345562565040 in words is "one hundred sixty-four trillion, three hundred forty-five billion, five hundred sixty-two million, five hundred sixty-five thousand, forty".