16702021399 has 16 divisors (see below), whose sum is σ = 20214266688. Its totient is φ = 13471621632.

The previous prime is 16702021397. The next prime is 16702021463. The reversal of 16702021399 is 99312020761.

It is not a de Polignac number, because 16702021399 - 2¹ = 16702021397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16702021397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1328089 + ... + 1340605.

It is an arithmetic number, because the mean of its divisors is an integer number (1263391668).

Almost surely, 2^16702021399 is an apocalyptic number.

16702021399 is a deficient number, since it is larger than the sum of its proper divisors (3512245289).

16702021399 is a wasteful number, since it uses less digits than its factorization.

16702021399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23754.

The product of its (nonzero) digits is 40824, while the sum is 40.

The spelling of 16702021399 in words is "sixteen billion, seven hundred two million, twenty-one thousand, three hundred ninety-nine".