16320553502 has 16 divisors (see below), whose sum is σ = 26820988272. Its totient is φ = 7386592320.

The previous prime is 16320553489. The next prime is 16320553549. The reversal of 16320553502 is 20535502361.

It is a super-2 number, since 2×16320553502² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1586813 + ... + 1597064.

It is an arithmetic number, because the mean of its divisors is an integer number (1676311767).

Almost surely, 2^16320553502 is an apocalyptic number.

16320553502 is a deficient number, since it is larger than the sum of its proper divisors (10500434770).

16320553502 is a wasteful number, since it uses less digits than its factorization.

16320553502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184123.

The product of its (nonzero) digits is 27000, while the sum is 32.

The spelling of 16320553502 in words is "sixteen billion, three hundred twenty million, five hundred fifty-three thousand, five hundred two".