16742620733 has 4 divisors (see below), whose sum is σ = 16853499168. Its totient is φ = 16631742300.

The previous prime is 16742620717. The next prime is 16742620753. The reversal of 16742620733 is 33702624761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33702624761 = 13 ⋅2592509597.

It is a cyclic number.

It is not a de Polignac number, because 16742620733 - 2⁴ = 16742620717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16742620753) 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, 55438991 + ... + 55439292.

It is an arithmetic number, because the mean of its divisors is an integer number (4213374792).

Almost surely, 2^16742620733 is an apocalyptic number.

It is an amenable number.

16742620733 is a deficient number, since it is larger than the sum of its proper divisors (110878435).

16742620733 is a wasteful number, since it uses less digits than its factorization.

16742620733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110878434.

The product of its (nonzero) digits is 254016, while the sum is 41.

The spelling of 16742620733 in words is "sixteen billion, seven hundred forty-two million, six hundred twenty thousand, seven hundred thirty-three".