1996326555 has 8 divisors (see below), whose sum is σ = 3194122512. Its totient is φ = 1064707488.

The previous prime is 1996326529. The next prime is 1996326559. The reversal of 1996326555 is 5556236991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1996326555 - 2⁶ = 1996326491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1996326498 and 1996326507.

It is not an unprimeable number, because it can be changed into a prime (1996326559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66544204 + ... + 66544233.

It is an arithmetic number, because the mean of its divisors is an integer number (399265314).

Almost surely, 2^1996326555 is an apocalyptic number.

1996326555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1996326555 is a deficient number, since it is larger than the sum of its proper divisors (1197795957).

1996326555 is a wasteful number, since it uses less digits than its factorization.

1996326555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133088445.

The product of its digits is 2187000, while the sum is 51.

The square root of 1996326555 is about 44680.2703102835. The cubic root of 1996326555 is about 1259.1492020315.

The spelling of 1996326555 in words is "one billion, nine hundred ninety-six million, three hundred twenty-six thousand, five hundred fifty-five".