16586149640 has 16 divisors (see below), whose sum is σ = 37318836780. Its totient is φ = 6634459840.

The previous prime is 16586149639. The next prime is 16586149687. The reversal of 16586149640 is 4694168561.

16586149640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 16585833796 + 315844 = 128786^2 + 562^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207326831 + ... + 207326910.

Almost surely, 2^16586149640 is an apocalyptic number.

16586149640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16586149640 is an abundant number, since it is smaller than the sum of its proper divisors (20732687140).

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

16586149640 is a wasteful number, since it uses less digits than its factorization.

16586149640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414653752 (or 414653748 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 16586149640 in words is "sixteen billion, five hundred eighty-six million, one hundred forty-nine thousand, six hundred forty".