16551620702 has 4 divisors (see below), whose sum is σ = 24827431056. Its totient is φ = 8275810350.

The previous prime is 16551620669. The next prime is 16551620707. The reversal of 16551620702 is 20702615561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20702615561 = 11353 ⋅1823537.

It is a super-2 number, since 2×16551620702² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16551620707) 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 as a sum of consecutive naturals, namely, 4137905174 + ... + 4137905177.

It is an arithmetic number, because the mean of its divisors is an integer number (6206857764).

Almost surely, 2^16551620702 is an apocalyptic number.

16551620702 is a deficient number, since it is larger than the sum of its proper divisors (8275810354).

16551620702 is an equidigital number, since it uses as much as digits as its factorization.

16551620702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8275810353.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 16551620702 in words is "sixteen billion, five hundred fifty-one million, six hundred twenty thousand, seven hundred two".