16215376379 has 4 divisors (see below), whose sum is σ = 16227957480. Its totient is φ = 16202795280.

The previous prime is 16215376351. The next prime is 16215376439. The reversal of 16215376379 is 97367351261.

16215376379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97367351261 = 449 ⋅216853789.

It is a cyclic number.

It is not a de Polignac number, because 16215376379 - 2⁸ = 16215376123 is a prime.

It is a super-2 number, since 2×16215376379² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16215372379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6288617 + ... + 6291194.

It is an arithmetic number, because the mean of its divisors is an integer number (4056989370).

Almost surely, 2^16215376379 is an apocalyptic number.

16215376379 is a deficient number, since it is larger than the sum of its proper divisors (12581101).

16215376379 is a wasteful number, since it uses less digits than its factorization.

16215376379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12581100.

The product of its digits is 1428840, while the sum is 50.

The spelling of 16215376379 in words is "sixteen billion, two hundred fifteen million, three hundred seventy-six thousand, three hundred seventy-nine".