2166473970 has 48 divisors (see below), whose sum is σ = 5647629312. Its totient is φ = 576208800.

The previous prime is 2166473963. The next prime is 2166474001. The reversal of 2166473970 is 793746612.

2166473970 is a `hidden beast` number, since 216 + 6 + 47 + 397 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3045 + ... + 65895.

It is an arithmetic number, because the mean of its divisors is an integer number (117658944).

Almost surely, 2^2166473970 is an apocalyptic number.

2166473970 is an abundant number, since it is smaller than the sum of its proper divisors (3481155342).

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

2166473970 is a wasteful number, since it uses less digits than its factorization.

2166473970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63247 (or 63244 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 2166473970 is about 46545.3968723009. The cubic root of 2166473970 is about 1293.9509838284.

The spelling of 2166473970 in words is "two billion, one hundred sixty-six million, four hundred seventy-three thousand, nine hundred seventy".