16215436446 has 32 divisors (see below), whose sum is σ = 35504189568. Its totient is φ = 4896399840.

The previous prime is 16215436441. The next prime is 16215436453. The reversal of 16215436446 is 64463451261.

It is a super-2 number, since 2×16215436446² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16215436398 and 16215436407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16215436441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415401 + ... + 452756.

It is an arithmetic number, because the mean of its divisors is an integer number (1109505924).

Almost surely, 2^16215436446 is an apocalyptic number.

16215436446 is an abundant number, since it is smaller than the sum of its proper divisors (19288753122).

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

16215436446 is a wasteful number, since it uses less digits than its factorization.

16215436446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868456.

The product of its digits is 414720, while the sum is 42.

The spelling of 16215436446 in words is "sixteen billion, two hundred fifteen million, four hundred thirty-six thousand, four hundred forty-six".