16842652021 has 8 divisors (see below), whose sum is σ = 18393709824. Its totient is φ = 15328089840.

The previous prime is 16842652019. The next prime is 16842652051. The reversal of 16842652021 is 12025624861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16842652021 - 2¹ = 16842652019 is a prime.

It is a super-3 number, since 3×16842652021³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16842652051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9122941 + ... + 9124786.

It is an arithmetic number, because the mean of its divisors is an integer number (2299213728).

Almost surely, 2^16842652021 is an apocalyptic number.

It is an amenable number.

16842652021 is a deficient number, since it is larger than the sum of its proper divisors (1551057803).

16842652021 is a wasteful number, since it uses less digits than its factorization.

16842652021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18247811.

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 16842652021 in words is "sixteen billion, eight hundred forty-two million, six hundred fifty-two thousand, twenty-one".