1986167466 has 20 divisors (see below), whose sum is σ = 4450486722. Its totient is φ = 662055768.

The previous prime is 1986167453. The next prime is 1986167473. The reversal of 1986167466 is 6647616891.

It is a happy number.

1986167466 is a `hidden beast` number, since 19 + 8 + 6 + 167 + 466 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1172720025 + 813447441 = 34245^2 + 28521^2 .

It is a super-2 number, since 2×1986167466² = 7889722405993722312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6129985 + ... + 6130308.

Almost surely, 2^1986167466 is an apocalyptic number.

1986167466 is an abundant number, since it is smaller than the sum of its proper divisors (2464319256).

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

1986167466 is a wasteful number, since it uses less digits than its factorization.

1986167466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12260307 (or 12260298 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 1986167466 is about 44566.4387852563. The cubic root of 1986167466 is about 1257.0096774735.

The spelling of 1986167466 in words is "one billion, nine hundred eighty-six million, one hundred sixty-seven thousand, four hundred sixty-six".