35640557136 has 30 divisors (see below), whose sum is σ = 99744059610. Its totient is φ = 11880185664.

The previous prime is 35640557129. The next prime is 35640557191. The reversal of 35640557136 is 63175504653.

35640557136 is a `hidden beast` number, since 3 + 5 + 6 + 40 + 5 + 571 + 36 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29603267136 + 6037290000 = 172056^2 + 77700^2 .

It is a junction number, because it is equal to n+sod(n) for n = 35640557091 and 35640557100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123751791 + ... + 123752078.

It is an arithmetic number, because the mean of its divisors is an integer number (3324801987).

Almost surely, 2^35640557136 is an apocalyptic number.

35640557136 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

35640557136 is an abundant number, since it is smaller than the sum of its proper divisors (64103502474).

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

35640557136 is a wasteful number, since it uses less digits than its factorization.

35640557136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247503883 (or 247503874 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 45.

The spelling of 35640557136 in words is "thirty-five billion, six hundred forty million, five hundred fifty-seven thousand, one hundred thirty-six".