16626798023 has 4 divisors (see below), whose sum is σ = 18138325128. Its totient is φ = 15115270920.

The previous prime is 16626798017. The next prime is 16626798029. The reversal of 16626798023 is 32089762661.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32089762661 = 11 ⋅2917251151.

It is an interprime number because it is at equal distance from previous prime (16626798017) and next prime (16626798029).

It is a cyclic number.

It is not a de Polignac number, because 16626798023 - 2¹⁰ = 16626796999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16626798029) 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, 755763536 + ... + 755763557.

It is an arithmetic number, because the mean of its divisors is an integer number (4534581282).

Almost surely, 2^16626798023 is an apocalyptic number.

16626798023 is a deficient number, since it is larger than the sum of its proper divisors (1511527105).

16626798023 is a wasteful number, since it uses less digits than its factorization.

16626798023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511527104.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 16626798023 in words is "sixteen billion, six hundred twenty-six million, seven hundred ninety-eight thousand, twenty-three".