16552527840 has 72 divisors (see below), whose sum is σ = 56485506168. Its totient is φ = 4414007040.

The previous prime is 16552527839. The next prime is 16552527857. The reversal of 16552527840 is 4872525561.

16552527840 is a `hidden beast` number, since 1 + 6 + 552 + 52 + 7 + 8 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

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 11 ways as a sum of consecutive naturals, for example, 5745966 + ... + 5748845.

It is an arithmetic number, because the mean of its divisors is an integer number (784520919).

Almost surely, 2^16552527840 is an apocalyptic number.

16552527840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16552527840 is an abundant number, since it is smaller than the sum of its proper divisors (39932978328).

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

16552527840 is a wasteful number, since it uses less digits than its factorization.

16552527840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11494832 (or 11494821 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 16552527840 in words is "sixteen billion, five hundred fifty-two million, five hundred twenty-seven thousand, eight hundred forty".