16428032964 has 108 divisors (see below), whose sum is σ = 48042519616. Its totient is φ = 4636682784.

The previous prime is 16428032963. The next prime is 16428032981. The reversal of 16428032964 is 46923082461.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (16428032963) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1731297 + ... + 1740759.

Almost surely, 2^16428032964 is an apocalyptic number.

16428032964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16428032964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24021259808).

16428032964 is an abundant number, since it is smaller than the sum of its proper divisors (31614486652).

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

16428032964 is a wasteful number, since it uses less digits than its factorization.

16428032964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9646 (or 9558 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 16428032964 in words is "sixteen billion, four hundred twenty-eight million, thirty-two thousand, nine hundred sixty-four".