19334066540 has 24 divisors (see below), whose sum is σ = 40608032640. Its totient is φ = 7732389888.

The previous prime is 19334066533. The next prime is 19334066573. The reversal of 19334066540 is 4566043391.

It is a super-2 number, since 2×19334066540² (a number of 21 digits) contains 22 as substring.

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, 56549 + ... + 204611.

It is an arithmetic number, because the mean of its divisors is an integer number (1692001360).

Almost surely, 2^19334066540 is an apocalyptic number.

19334066540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19334066540 is an abundant number, since it is smaller than the sum of its proper divisors (21273966100).

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

19334066540 is a wasteful number, since it uses less digits than its factorization.

19334066540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154601 (or 154599 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 19334066540 in words is "nineteen billion, three hundred thirty-four million, sixty-six thousand, five hundred forty".