642164351110 has 16 divisors (see below), whose sum is σ = 1164333030336. Its totient is φ = 254990807488.

The previous prime is 642164351107. The next prime is 642164351123. The reversal of 642164351110 is 11153461246.

It is a congruent number.

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, 234365182 + ... + 234367921.

It is an arithmetic number, because the mean of its divisors is an integer number (72770814396).

Almost surely, 2^642164351110 is an apocalyptic number.

642164351110 is a deficient number, since it is larger than the sum of its proper divisors (522168679226).

642164351110 is a wasteful number, since it uses less digits than its factorization.

642164351110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468733247.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 642164351110 in words is "six hundred forty-two billion, one hundred sixty-four million, three hundred fifty-one thousand, one hundred ten".