19660050 has 48 divisors (see below), whose sum is σ = 54178080. Its totient is φ = 5242320.

The previous prime is 19660037. The next prime is 19660051. The reversal of 19660050 is 5006691.

19660050 is a `hidden beast` number, since 1 + 9 + 6 + 600 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 19659996 and 19660023.

It is not an unprimeable number, because it can be changed into a prime (19660051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5932 + ... + 8631.

It is an arithmetic number, because the mean of its divisors is an integer number (1128710).

Almost surely, 2^19660050 is an apocalyptic number.

19660050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19660050 is an abundant number, since it is smaller than the sum of its proper divisors (34518030).

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

19660050 is a wasteful number, since it uses less digits than its factorization.

19660050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14584 (or 14573 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 19660050 is about 4433.9654937764. The cubic root of 19660050 is about 269.8950209166.

The spelling of 19660050 in words is "nineteen million, six hundred sixty thousand, fifty".