16992378011 has 4 divisors (see below), whose sum is σ = 19419860592. Its totient is φ = 14564895432.

The previous prime is 16992377959. The next prime is 16992378023. The reversal of 16992378011 is 11087329961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11087329961 = 29123 ⋅380707.

It is a cyclic number.

It is not a de Polignac number, because 16992378011 - 2¹⁰ = 16992376987 is a prime.

It is a super-2 number, since 2×16992378011² (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 (16992378041) 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, 1213741280 + ... + 1213741293.

It is an arithmetic number, because the mean of its divisors is an integer number (4854965148).

Almost surely, 2^16992378011 is an apocalyptic number.

16992378011 is a deficient number, since it is larger than the sum of its proper divisors (2427482581).

16992378011 is an equidigital number, since it uses as much as digits as its factorization.

16992378011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427482580.

The product of its (nonzero) digits is 163296, while the sum is 47.

The spelling of 16992378011 in words is "sixteen billion, nine hundred ninety-two million, three hundred seventy-eight thousand, eleven".