16540438166934 has 64 divisors (see below), whose sum is σ = 37253205891072. Its totient is φ = 4850458905600.

The previous prime is 16540438166927. The next prime is 16540438166999. The reversal of 16540438166934 is 43966183404561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155027334 + ... + 155133990.

It is an arithmetic number, because the mean of its divisors is an integer number (582081342048).

Almost surely, 2^{16540438166934} is an apocalyptic number.

16540438166934 is an abundant number, since it is smaller than the sum of its proper divisors (20712767724138).

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

16540438166934 is a wasteful number, since it uses less digits than its factorization.

16540438166934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182501.

The product of its (nonzero) digits is 44789760, while the sum is 60.

The spelling of 16540438166934 in words is "sixteen trillion, five hundred forty billion, four hundred thirty-eight million, one hundred sixty-six thousand, nine hundred thirty-four".