16123004451 has 32 divisors (see below), whose sum is σ = 24507651840. Its totient is φ = 10469736000.

The previous prime is 16123004441. The next prime is 16123004461. The reversal of 16123004451 is 15440032161.

It is a happy number.

16123004451 is a `hidden beast` number, since 1 + 612 + 3 + 0 + 0 + 4 + 45 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (16123004441) and next prime (16123004461).

It is not a de Polignac number, because 16123004451 - 2¹³ = 16122996259 is a prime.

It is a super-2 number, since 2×16123004451² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (16123004441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 700476 + ... + 723126.

It is an arithmetic number, because the mean of its divisors is an integer number (765864120).

Almost surely, 2^16123004451 is an apocalyptic number.

16123004451 is a deficient number, since it is larger than the sum of its proper divisors (8384647389).

16123004451 is a wasteful number, since it uses less digits than its factorization.

16123004451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23344 (or 23338 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The spelling of 16123004451 in words is "sixteen billion, one hundred twenty-three million, four thousand, four hundred fifty-one".