641642106 has 16 divisors (see below), whose sum is σ = 1466610624. Its totient is φ = 183326304.

The previous prime is 641642083. The next prime is 641642117. The reversal of 641642106 is 601246146.

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, 7638555 + ... + 7638638.

It is an arithmetic number, because the mean of its divisors is an integer number (91663164).

Almost surely, 2^641642106 is an apocalyptic number.

641642106 is an abundant number, since it is smaller than the sum of its proper divisors (824968518).

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

641642106 is a wasteful number, since it uses less digits than its factorization.

641642106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15277205.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 641642106 is about 25330.6554593441. The cubic root of 641642106 is about 862.5102903204.

The spelling of 641642106 in words is "six hundred forty-one million, six hundred forty-two thousand, one hundred six".