19000166964 has 48 divisors (see below), whose sum is σ = 45395114688. Its totient is φ = 6181959168.

The previous prime is 19000166963. The next prime is 19000166971. The reversal of 19000166964 is 46966100091.

It is a super-2 number, since 2×19000166964² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19000166963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 812524 + ... + 835580.

It is an arithmetic number, because the mean of its divisors is an integer number (945731556).

Almost surely, 2^19000166964 is an apocalyptic number.

It is an amenable number.

19000166964 is an abundant number, since it is smaller than the sum of its proper divisors (26394947724).

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

19000166964 is a wasteful number, since it uses less digits than its factorization.

19000166964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24704 (or 24702 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The spelling of 19000166964 in words is "nineteen billion, one hundred sixty-six thousand, nine hundred sixty-four".