264643204142 has 16 divisors (see below), whose sum is σ = 397226685120. Its totient is φ = 132234342912.

The previous prime is 264643204127. The next prime is 264643204169. The reversal of 264643204142 is 241402346462.

It is a junction number, because it is equal to n+sod(n) for n = 264643204096 and 264643204105.

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, 31678238 + ... + 31686590.

It is an arithmetic number, because the mean of its divisors is an integer number (24826667820).

Almost surely, 2^264643204142 is an apocalyptic number.

264643204142 is a deficient number, since it is larger than the sum of its proper divisors (132583480978).

264643204142 is a wasteful number, since it uses less digits than its factorization.

264643204142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16907.

The product of its (nonzero) digits is 221184, while the sum is 38.

The spelling of 264643204142 in words is "two hundred sixty-four billion, six hundred forty-three million, two hundred four thousand, one hundred forty-two".