16405643134 has 16 divisors (see below), whose sum is σ = 24676941600. Its totient is φ = 8180023264.

The previous prime is 16405643131. The next prime is 16405643153. The reversal of 16405643134 is 43134650461.

It is a super-2 number, since 2×16405643134² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16405643093 and 16405643102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16405643131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1385712 + ... + 1397500.

It is an arithmetic number, because the mean of its divisors is an integer number (1542308850).

Almost surely, 2^16405643134 is an apocalyptic number.

16405643134 is a deficient number, since it is larger than the sum of its proper divisors (8271298466).

16405643134 is a wasteful number, since it uses less digits than its factorization.

16405643134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13667.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 16405643134 in words is "sixteen billion, four hundred five million, six hundred forty-three thousand, one hundred thirty-four".