2173066499 has 16 divisors (see below), whose sum is σ = 2372148480. Its totient is φ = 1983540960.

The previous prime is 2173066471. The next prime is 2173066529. The reversal of 2173066499 is 9946603712.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2173066499 - 2¹² = 2173062403 is a prime.

It is a super-2 number, since 2×2173066499² = 9444436018152234002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2173066199) 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, 57404 + ... + 87414.

It is an arithmetic number, because the mean of its divisors is an integer number (148259280).

Almost surely, 2^2173066499 is an apocalyptic number.

2173066499 is a deficient number, since it is larger than the sum of its proper divisors (199081981).

2173066499 is a wasteful number, since it uses less digits than its factorization.

2173066499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30170.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 2173066499 is about 46616.1613499010. The cubic root of 2173066499 is about 1295.2621421884.

The spelling of 2173066499 in words is "two billion, one hundred seventy-three million, sixty-six thousand, four hundred ninety-nine".