16055500979 has 4 divisors (see below), whose sum is σ = 18349143984. Its totient is φ = 13761857976.

The previous prime is 16055500963. The next prime is 16055500987. The reversal of 16055500979 is 97900555061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97900555061 = 29 ⋅3375881209.

It is a cyclic number.

It is not a de Polignac number, because 16055500979 - 2⁴ = 16055500963 is a prime.

It is a super-2 number, since 2×16055500979² (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 (16055503979) 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, 1146821492 + ... + 1146821505.

It is an arithmetic number, because the mean of its divisors is an integer number (4587285996).

Almost surely, 2^16055500979 is an apocalyptic number.

16055500979 is a deficient number, since it is larger than the sum of its proper divisors (2293643005).

16055500979 is an equidigital number, since it uses as much as digits as its factorization.

16055500979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293643004.

The product of its (nonzero) digits is 425250, while the sum is 47.

The spelling of 16055500979 in words is "sixteen billion, fifty-five million, five hundred thousand, nine hundred seventy-nine".