798055566 has 32 divisors (see below), whose sum is σ = 1989957888. Its totient is φ = 207287040.

The previous prime is 798055561. The next prime is 798055567. The reversal of 798055566 is 665550897.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798055561) 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, 863235 + ... + 864158.

It is an arithmetic number, because the mean of its divisors is an integer number (62186184).

Almost surely, 2^798055566 is an apocalyptic number.

798055566 is an abundant number, since it is smaller than the sum of its proper divisors (1191902322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

798055566 is a wasteful number, since it uses less digits than its factorization.

798055566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727416.

The product of its (nonzero) digits is 2268000, while the sum is 51.

The square root of 798055566 is about 28249.8772740697. The cubic root of 798055566 is about 927.5650512953.

It can be divided in two parts, 7980 and 55566, that added together give a triangular number (63546 = T₃₅₆).

The spelling of 798055566 in words is "seven hundred ninety-eight million, fifty-five thousand, five hundred sixty-six".