16655510101 has 4 divisors (see below), whose sum is σ = 16904099872. Its totient is φ = 16406920332.

The previous prime is 16655510093. The next prime is 16655510117. The reversal of 16655510101 is 10101555661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10101555661 = 967 ⋅10446283.

It is a cyclic number.

It is not a de Polignac number, because 16655510101 - 2³ = 16655510093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16655510161) 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, 124294785 + ... + 124294918.

It is an arithmetic number, because the mean of its divisors is an integer number (4226024968).

Almost surely, 2^16655510101 is an apocalyptic number.

It is an amenable number.

16655510101 is a deficient number, since it is larger than the sum of its proper divisors (248589771).

16655510101 is an equidigital number, since it uses as much as digits as its factorization.

16655510101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248589770.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 16655510101 in words is "sixteen billion, six hundred fifty-five million, five hundred ten thousand, one hundred one".