16469431020 has 144 divisors (see below), whose sum is σ = 60452578368. Its totient is φ = 3542999040.

The previous prime is 16469430961. The next prime is 16469431031. The reversal of 16469431020 is 2013496461.

16469431020 is a `hidden beast` number, since 1 + 646 + 9 + 4 + 3 + 1 + 0 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 363021 + ... + 405860.

It is an arithmetic number, because the mean of its divisors is an integer number (419809572).

Almost surely, 2^16469431020 is an apocalyptic number.

16469431020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16469431020 is an abundant number, since it is smaller than the sum of its proper divisors (43983147348).

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

16469431020 is a wasteful number, since it uses less digits than its factorization.

16469431020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768920 (or 768915 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 16469431020 in words is "sixteen billion, four hundred sixty-nine million, four hundred thirty-one thousand, twenty".