19560260164 has 9 divisors (see below), whose sum is σ = 34230944797. Its totient is φ = 9779990224.

The previous prime is 19560260117. The next prime is 19560260177. The reversal of 19560260164 is 46106206591.

It is a happy number.

The square root of 19560260164 is 139858.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 405700164 + 19154560000 = 20142^2 + 138400^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 244752 + ... + 314680.

Almost surely, 2^19560260164 is an apocalyptic number.

19560260164 is the 139858-th square number.

It is an amenable number.

19560260164 is a deficient number, since it is larger than the sum of its proper divisors (14670684633).

19560260164 is an frugal number, since it uses more digits than its factorization.

19560260164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139862 (or 69931 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 19560260164 in words is "nineteen billion, five hundred sixty million, two hundred sixty thousand, one hundred sixty-four".