9970155585 has 48 divisors (see below), whose sum is σ = 18647114304. Its totient is φ = 4898848896.

The previous prime is 9970155583. The next prime is 9970155593. The reversal of 9970155585 is 5855510799.

It is a happy number.

9970155585 is a `hidden beast` number, since 9 + 9 + 7 + 0 + 1 + 55 + 585 = 666.

It is not a de Polignac number, because 9970155585 - 2¹ = 9970155583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9970155583) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 289662 + ... + 322248.

It is an arithmetic number, because the mean of its divisors is an integer number (388481548).

Almost surely, 2^9970155585 is an apocalyptic number.

It is an amenable number.

9970155585 is a deficient number, since it is larger than the sum of its proper divisors (8676958719).

9970155585 is a wasteful number, since it uses less digits than its factorization.

9970155585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33134 (or 33131 counting only the distinct ones).

The product of its (nonzero) digits is 2835000, while the sum is 54.

The square root of 9970155585 is about 99850.6664224130. Note that the first 3 decimals coincide. The cubic root of 9970155585 is about 2152.2892929109.

The spelling of 9970155585 in words is "nine billion, nine hundred seventy million, one hundred fifty-five thousand, five hundred eighty-five".