16407481420 has 36 divisors (see below), whose sum is σ = 37872811872. Its totient is φ = 5966356000.

The previous prime is 16407481397. The next prime is 16407481429. The reversal of 16407481420 is 2418470461.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16407481420.

It is not an unprimeable number, because it can be changed into a prime (16407481429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3387556 + ... + 3392395.

It is an arithmetic number, because the mean of its divisors is an integer number (1052022552).

Almost surely, 2^16407481420 is an apocalyptic number.

16407481420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16407481420 is an abundant number, since it is smaller than the sum of its proper divisors (21465330452).

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

16407481420 is a wasteful number, since it uses less digits than its factorization.

16407481420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6779982 (or 6779969 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The spelling of 16407481420 in words is "sixteen billion, four hundred seven million, four hundred eighty-one thousand, four hundred twenty".