16115651101 has 32 divisors (see below), whose sum is σ = 18261210240. Its totient is φ = 14094643200.

The previous prime is 16115651099. The next prime is 16115651107. The reversal of 16115651101 is 10115651161.

It is not a de Polignac number, because 16115651101 - 2¹ = 16115651099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16115651101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16115651107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17017110 + ... + 17018056.

It is an arithmetic number, because the mean of its divisors is an integer number (570662820).

Almost surely, 2^16115651101 is an apocalyptic number.

16115651101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16115651101 is a deficient number, since it is larger than the sum of its proper divisors (2145559139).

16115651101 is a wasteful number, since it uses less digits than its factorization.

16115651101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485.

The product of its (nonzero) digits is 900, while the sum is 28.

The spelling of 16115651101 in words is "sixteen billion, one hundred fifteen million, six hundred fifty-one thousand, one hundred one".