2162497866 has 16 divisors (see below), whose sum is σ = 4325903904. Its totient is φ = 720681264.

The previous prime is 2162497859. The next prime is 2162497879. The reversal of 2162497866 is 6687942612.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4645 + ... + 65928.

It is an arithmetic number, because the mean of its divisors is an integer number (270368994).

Almost surely, 2^2162497866 is an apocalyptic number.

2162497866 is an abundant number, since it is smaller than the sum of its proper divisors (2163406038).

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

2162497866 is a wasteful number, since it uses less digits than its factorization.

2162497866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75685.

The product of its digits is 1741824, while the sum is 51.

The square root of 2162497866 is about 46502.6651494299. The cubic root of 2162497866 is about 1293.1589081000.

It can be divided in two parts, 216249 and 7866, that added together give a triangular number (224115 = T₆₆₉).

The spelling of 2162497866 in words is "two billion, one hundred sixty-two million, four hundred ninety-seven thousand, eight hundred sixty-six".