9920544652 has 12 divisors (see below), whose sum is σ = 17361650376. Its totient is φ = 4960073120.

The previous prime is 9920544643. The next prime is 9920544661. The reversal of 9920544652 is 2564450299.

It is an interprime number because it is at equal distance from previous prime (9920544643) and next prime (9920544661).

It is a super-2 number, since 2×9920544652² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172863 + ... + 222985.

It is an arithmetic number, because the mean of its divisors is an integer number (1446804198).

Almost surely, 2^9920544652 is an apocalyptic number.

It is an amenable number.

9920544652 is a deficient number, since it is larger than the sum of its proper divisors (7441105724).

9920544652 is a wasteful number, since it uses less digits than its factorization.

9920544652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99608 (or 99606 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 46.

The square root of 9920544652 is about 99601.9309652177. The cubic root of 9920544652 is about 2148.7134651719.

The spelling of 9920544652 in words is "nine billion, nine hundred twenty million, five hundred forty-four thousand, six hundred fifty-two".