1799791066 has 8 divisors (see below), whose sum is σ = 2750624244. Its totient is φ = 882916320.

The previous prime is 1799791033. The next prime is 1799791067. The reversal of 1799791066 is 6601979971.

It can be written as a sum of positive squares in 2 ways, for example, as 1400630625 + 399160441 = 37425^2 + 19979^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1799790998 and 1799791016.

It is not an unprimeable number, because it can be changed into a prime (1799791067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8489475 + ... + 8489686.

Almost surely, 2^1799791066 is an apocalyptic number.

1799791066 is a deficient number, since it is larger than the sum of its proper divisors (950833178).

1799791066 is a wasteful number, since it uses less digits than its factorization.

1799791066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16979216.

The product of its (nonzero) digits is 1285956, while the sum is 55.

The square root of 1799791066 is about 42423.9444889322. The cubic root of 1799791066 is about 1216.3933314123.

The spelling of 1799791066 in words is "one billion, seven hundred ninety-nine million, seven hundred ninety-one thousand, sixty-six".