16812459552 has 48 divisors (see below), whose sum is σ = 50437380672. Its totient is φ = 4803559680.

The previous prime is 16812459539. The next prime is 16812459557. The reversal of 16812459552 is 25595421861.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (16812459557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12508599 + ... + 12509942.

It is an arithmetic number, because the mean of its divisors is an integer number (1050778764).

Almost surely, 2^16812459552 is an apocalyptic number.

16812459552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16812459552 is an abundant number, since it is smaller than the sum of its proper divisors (33624921120).

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

16812459552 is a wasteful number, since it uses less digits than its factorization.

16812459552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25018561 (or 25018553 counting only the distinct ones).

The product of its digits is 864000, while the sum is 48.

The spelling of 16812459552 in words is "sixteen billion, eight hundred twelve million, four hundred fifty-nine thousand, five hundred fifty-two".