22306001663929 has 27 divisors (see below), whose sum is σ = 23791472163693. Its totient is φ = 20909022438528.

The previous prime is 22306001663873. The next prime is 22306001663971. The reversal of 22306001663929 is 92936610060322.

It is a happy number.

The square root of 22306001663929 is 4722923.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3615424636329 + 18690577027600 = 1901427^2 + 4323260^2 .

It is not a de Polignac number, because 22306001663929 - 2²⁷ = 22305867446201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22306001693929) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 29466316219 + ... + 29466316975.

Almost surely, 2^{22306001663929} is an apocalyptic number.

22306001663929 is the 4722923-rd square number.

22306001663929 is the 2361462-nd centered octagonal number.

It is an amenable number.

22306001663929 is a deficient number, since it is larger than the sum of its proper divisors (1485470499764).

22306001663929 is an frugal number, since it uses more digits than its factorization.

22306001663929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282 (or 1141 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 49.

The spelling of 22306001663929 in words is "twenty-two trillion, three hundred six billion, one million, six hundred sixty-three thousand, nine hundred twenty-nine".