16206393972 has 12 divisors (see below), whose sum is σ = 37814919296. Its totient is φ = 5402131320.

The previous prime is 16206393967. The next prime is 16206393977. The reversal of 16206393972 is 27939360261.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16206393967) and next prime (16206393977).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16206393977) 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, 675266404 + ... + 675266427.

Almost surely, 2^16206393972 is an apocalyptic number.

16206393972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16206393972 is an abundant number, since it is smaller than the sum of its proper divisors (21608525324).

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

16206393972 is a wasteful number, since it uses less digits than its factorization.

16206393972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350532838 (or 1350532836 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 48.

The spelling of 16206393972 in words is "sixteen billion, two hundred six million, three hundred ninety-three thousand, nine hundred seventy-two".