19465221805604 has 12 divisors (see below), whose sum is σ = 35545187645184. Its totient is φ = 9309453906984.

The previous prime is 19465221805567. The next prime is 19465221805639. The reversal of 19465221805604 is 40650812256491.

It is a super-2 number, since 2×19465221805604² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105789248852 + ... + 105789249035.

It is an arithmetic number, because the mean of its divisors is an integer number (2962098970432).

Almost surely, 2^{19465221805604} is an apocalyptic number.

It is an amenable number.

19465221805604 is a deficient number, since it is larger than the sum of its proper divisors (16079965839580).

19465221805604 is a wasteful number, since it uses less digits than its factorization.

19465221805604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211578497914 (or 211578497912 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 53.

The spelling of 19465221805604 in words is "nineteen trillion, four hundred sixty-five billion, two hundred twenty-one million, eight hundred five thousand, six hundred four".