16506146552 has 16 divisors (see below), whose sum is σ = 35370314160. Its totient is φ = 7074062784.

The previous prime is 16506146537. The next prime is 16506146557. The reversal of 16506146552 is 25564160561.

It is a super-2 number, since 2×16506146552² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16506146557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147376253 + ... + 147376364.

It is an arithmetic number, because the mean of its divisors is an integer number (2210644635).

Almost surely, 2^16506146552 is an apocalyptic number.

It is an amenable number.

16506146552 is an abundant number, since it is smaller than the sum of its proper divisors (18864167608).

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

16506146552 is a wasteful number, since it uses less digits than its factorization.

16506146552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294752630 (or 294752626 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 16506146552 in words is "sixteen billion, five hundred six million, one hundred forty-six thousand, five hundred fifty-two".