16120619089 has 3 divisors (see below), whose sum is σ = 16120746057. Its totient is φ = 16120492122.

The previous prime is 16120619033. The next prime is 16120619107. The reversal of 16120619089 is 98091602161.

The square root of 16120619089 is 126967.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 16120619089 - 2⁷ = 16120618961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16160619089) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 63484 + ... + 190450.

It is an arithmetic number, because the mean of its divisors is an integer number (5373582019).

Almost surely, 2^16120619089 is an apocalyptic number.

16120619089 is the 126967-th square number.

16120619089 is the 63484-th centered octagonal number.

It is an amenable number.

16120619089 is a deficient number, since it is larger than the sum of its proper divisors (126968).

16120619089 is an frugal number, since it uses more digits than its factorization.

16120619089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253934 (or 126967 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 43.

Multiplying 16120619089 by its product of nonzero digits (46656), we get a square (752123604216384 = 27424872²).

It can be divided in two parts, 16120 and 619089, that added together give a square (635209 = 797²).

The spelling of 16120619089 in words is "sixteen billion, one hundred twenty million, six hundred nineteen thousand, eighty-nine".