164503404340 has 48 divisors (see below), whose sum is σ = 378426210624. Its totient is φ = 59571187200.

The previous prime is 164503404323. The next prime is 164503404349. The reversal of 164503404340 is 43404305461.

It is a super-2 number, since 2×164503404340² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164503404296 and 164503404305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164503404349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1498314 + ... + 1604353.

It is an arithmetic number, because the mean of its divisors is an integer number (7883879388).

Almost surely, 2^164503404340 is an apocalyptic number.

164503404340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164503404340 is an abundant number, since it is smaller than the sum of its proper divisors (213922806284).

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

164503404340 is a wasteful number, since it uses less digits than its factorization.

164503404340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3102928 (or 3102926 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

The spelling of 164503404340 in words is "one hundred sixty-four billion, five hundred three million, four hundred four thousand, three hundred forty".