9955279936 has 56 divisors (see below), whose sum is σ = 22617273536. Its totient is φ = 4258967040.

The previous prime is 9955279921. The next prime is 9955279973. The reversal of 9955279936 is 6399725599.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236350 + ... + 275266.

Almost surely, 2^9955279936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9955279936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11308636768).

9955279936 is an abundant number, since it is smaller than the sum of its proper divisors (12661993600).

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

9955279936 is a wasteful number, since it uses less digits than its factorization.

9955279936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39507 (or 39497 counting only the distinct ones).

The product of its digits is 41334300, while the sum is 64.

The square root of 9955279936 is about 99776.1491339488. The cubic root of 9955279936 is about 2151.2183421730.

The spelling of 9955279936 in words is "nine billion, nine hundred fifty-five million, two hundred seventy-nine thousand, nine hundred thirty-six".