16553231464 has 32 divisors (see below), whose sum is σ = 38695867200. Its totient is φ = 6449310720.

The previous prime is 16553231447. The next prime is 16553231501. The reversal of 16553231464 is 46413235561.

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, 13435449 + ... + 13436680.

It is an arithmetic number, because the mean of its divisors is an integer number (1209245850).

Almost surely, 2^16553231464 is an apocalyptic number.

16553231464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16553231464 is an abundant number, since it is smaller than the sum of its proper divisors (22142635736).

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

16553231464 is a wasteful number, since it uses less digits than its factorization.

16553231464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26872153 (or 26872149 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The spelling of 16553231464 in words is "sixteen billion, five hundred fifty-three million, two hundred thirty-one thousand, four hundred sixty-four".