16136540446 has 8 divisors (see below), whose sum is σ = 26066719224. Its totient is φ = 7447634040.

The previous prime is 16136540411. The next prime is 16136540449. The reversal of 16136540446 is 64404563161.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 16136540399 and 16136540408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16136540449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310318060 + ... + 310318111.

It is an arithmetic number, because the mean of its divisors is an integer number (3258339903).

Almost surely, 2^16136540446 is an apocalyptic number.

16136540446 is a deficient number, since it is larger than the sum of its proper divisors (9930178778).

16136540446 is a wasteful number, since it uses less digits than its factorization.

16136540446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620636186.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 16136540446 in words is "sixteen billion, one hundred thirty-six million, five hundred forty thousand, four hundred forty-six".