16551620022 has 32 divisors (see below), whose sum is σ = 39136838400. Its totient is φ = 4565963808.

The previous prime is 16551620021. The next prime is 16551620069. The reversal of 16551620022 is 22002615561.

It is a super-2 number, since 2×16551620022² (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 (16551620021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6793372 + ... + 6795807.

It is an arithmetic number, because the mean of its divisors is an integer number (1223026200).

Almost surely, 2^16551620022 is an apocalyptic number.

16551620022 is an abundant number, since it is smaller than the sum of its proper divisors (22585218378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16551620022 is a wasteful number, since it uses less digits than its factorization.

16551620022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13589220.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 16551620022 in words is "sixteen billion, five hundred fifty-one million, six hundred twenty thousand, twenty-two".