219051566040 has 64 divisors (see below), whose sum is σ = 659016453600. Its totient is φ = 58248261632.

The previous prime is 219051566021. The next prime is 219051566119. The reversal of 219051566040 is 40665150912.

It is a self number, because there is not a number n which added to its sum of digits gives 219051566040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2543235 + ... + 2627954.

Almost surely, 2^219051566040 is an apocalyptic number.

219051566040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

219051566040 is an abundant number, since it is smaller than the sum of its proper divisors (439964887560).

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

219051566040 is a wasteful number, since it uses less digits than its factorization.

219051566040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171556 (or 5171552 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 219051566040 in words is "two hundred nineteen billion, fifty-one million, five hundred sixty-six thousand, forty".