32081299646 has 16 divisors (see below), whose sum is σ = 52662288240. Its totient is φ = 14536404480.

The previous prime is 32081299631. The next prime is 32081299669. The reversal of 32081299646 is 64699218023.

It is a junction number, because it is equal to n+sod(n) for n = 32081299594 and 32081299603.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2293091 + ... + 2307038.

It is an arithmetic number, because the mean of its divisors is an integer number (3291393015).

Almost surely, 2^32081299646 is an apocalyptic number.

32081299646 is a deficient number, since it is larger than the sum of its proper divisors (20580988594).

32081299646 is a wasteful number, since it uses less digits than its factorization.

32081299646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4600459.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 32081299646 in words is "thirty-two billion, eighty-one million, two hundred ninety-nine thousand, six hundred forty-six".