640101576 has 16 divisors (see below), whose sum is σ = 1600254000. Its totient is φ = 213367184.

The previous prime is 640101559. The next prime is 640101593. The reversal of 640101576 is 675101046.

It is an interprime number because it is at equal distance from previous prime (640101559) and next prime (640101593).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13335426 + ... + 13335473.

It is an arithmetic number, because the mean of its divisors is an integer number (100015875).

Almost surely, 2^640101576 is an apocalyptic number.

It is an amenable number.

640101576 is an abundant number, since it is smaller than the sum of its proper divisors (960152424).

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

640101576 is a wasteful number, since it uses less digits than its factorization.

640101576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26670908 (or 26670904 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 640101576 is about 25300.2287736692. The cubic root of 640101576 is about 861.8194650298.

The spelling of 640101576 in words is "six hundred forty million, one hundred one thousand, five hundred seventy-six".