16123455034 has 4 divisors (see below), whose sum is σ = 24185182554. Its totient is φ = 8061727516.

The previous prime is 16123454999. The next prime is 16123455079. The reversal of 16123455034 is 43055432161.

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

It can be written as a sum of positive squares in only one way, i.e., 14543154025 + 1580301009 = 120595^2 + 39753^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4030863757 + ... + 4030863760.

Almost surely, 2^16123455034 is an apocalyptic number.

16123455034 is a deficient number, since it is larger than the sum of its proper divisors (8061727520).

16123455034 is an equidigital number, since it uses as much as digits as its factorization.

16123455034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8061727519.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 16123455034 its reverse (43055432161), we get a palindrome (59178887195).

The spelling of 16123455034 in words is "sixteen billion, one hundred twenty-three million, four hundred fifty-five thousand, thirty-four".