16616922974 has 4 divisors (see below), whose sum is σ = 24925384464. Its totient is φ = 8308461486.

The previous prime is 16616922943. The next prime is 16616922983. The reversal of 16616922974 is 47922961661.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×16616922974² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4154230742 + ... + 4154230745.

It is an arithmetic number, because the mean of its divisors is an integer number (6231346116).

Almost surely, 2^16616922974 is an apocalyptic number.

16616922974 is a deficient number, since it is larger than the sum of its proper divisors (8308461490).

16616922974 is an equidigital number, since it uses as much as digits as its factorization.

16616922974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8308461489.

The product of its digits is 1959552, while the sum is 53.

The spelling of 16616922974 in words is "sixteen billion, six hundred sixteen million, nine hundred twenty-two thousand, nine hundred seventy-four".