19596020961 has 16 divisors (see below), whose sum is σ = 28528738560. Its totient is φ = 11865778320.

The previous prime is 19596020959. The next prime is 19596021007. The reversal of 19596020961 is 16902069591.

It is not a de Polignac number, because 19596020961 - 2¹ = 19596020959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19596020961.

It is not an unprimeable number, because it can be changed into a prime (19596020161) 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, 227331 + ... + 301448.

It is an arithmetic number, because the mean of its divisors is an integer number (1783046160).

Almost surely, 2^19596020961 is an apocalyptic number.

19596020961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19596020961 is a deficient number, since it is larger than the sum of its proper divisors (8932717599).

19596020961 is a wasteful number, since it uses less digits than its factorization.

19596020961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529916.

The product of its (nonzero) digits is 262440, while the sum is 48.

The spelling of 19596020961 in words is "nineteen billion, five hundred ninety-six million, twenty thousand, nine hundred sixty-one".