16106505657 has 48 divisors (see below), whose sum is σ = 24207617280. Its totient is φ = 9513393120.

The previous prime is 16106505601. The next prime is 16106505661. The reversal of 16106505657 is 75650560161.

It is not a de Polignac number, because 16106505657 - 2¹⁶ = 16106440121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16106585657) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9661138 + ... + 9662804.

It is an arithmetic number, because the mean of its divisors is an integer number (504325360).

Almost surely, 2^16106505657 is an apocalyptic number.

It is an amenable number.

16106505657 is a deficient number, since it is larger than the sum of its proper divisors (8101111623).

16106505657 is a wasteful number, since it uses less digits than its factorization.

16106505657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354 (or 2343 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 42.

The spelling of 16106505657 in words is "sixteen billion, one hundred six million, five hundred five thousand, six hundred fifty-seven".