16208932420 has 24 divisors (see below), whose sum is σ = 34174381248. Its totient is φ = 6457740000.

The previous prime is 16208932409. The next prime is 16208932463. The reversal of 16208932420 is 2423980261.

It is a happy number.

It is a super-2 number, since 2×16208932420² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16208932420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1609416 + ... + 1619455.

It is an arithmetic number, because the mean of its divisors is an integer number (1423932552).

Almost surely, 2^16208932420 is an apocalyptic number.

16208932420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16208932420 is an abundant number, since it is smaller than the sum of its proper divisors (17965448828).

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

16208932420 is a wasteful number, since it uses less digits than its factorization.

16208932420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3229131 (or 3229129 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 16208932420 in words is "sixteen billion, two hundred eight million, nine hundred thirty-two thousand, four hundred twenty".