640160106 has 32 divisors (see below), whose sum is σ = 1327197696. Its totient is φ = 205632000.

The previous prime is 640160099. The next prime is 640160107. The reversal of 640160106 is 601061046.

It is a super-2 number, since 2×640160106² = 819609922627862472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (640160107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37686 + ... + 51966.

It is an arithmetic number, because the mean of its divisors is an integer number (41474928).

Almost surely, 2^640160106 is an apocalyptic number.

640160106 is an abundant number, since it is smaller than the sum of its proper divisors (687037590).

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

640160106 is a wasteful number, since it uses less digits than its factorization.

640160106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14558.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 640160106 is about 25301.3854561366. The cubic root of 640160106 is about 861.8457320879.

The spelling of 640160106 in words is "six hundred forty million, one hundred sixty thousand, one hundred six".