16915388061 has 16 divisors (see below), whose sum is σ = 26496832320. Its totient is φ = 9463153920.

The previous prime is 16915388051. The next prime is 16915388071. The reversal of 16915388061 is 16088351961.

It is an interprime number because it is at equal distance from previous prime (16915388051) and next prime (16915388071).

It is not a de Polignac number, because 16915388061 - 2⁵ = 16915388029 is a prime.

It is a super-2 number, since 2×16915388061² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16915388061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16915388011) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 19714476 + ... + 19715333.

It is an arithmetic number, because the mean of its divisors is an integer number (1656052020).

Almost surely, 2^16915388061 is an apocalyptic number.

16915388061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16915388061 is a deficient number, since it is larger than the sum of its proper divisors (9581444259).

16915388061 is a wasteful number, since it uses less digits than its factorization.

16915388061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39429836.

The product of its (nonzero) digits is 311040, while the sum is 48.

The spelling of 16915388061 in words is "sixteen billion, nine hundred fifteen million, three hundred eighty-eight thousand, sixty-one".