6670166087451 has 4 divisors (see below), whose sum is σ = 8893554783272. Its totient is φ = 4446777391632.

The previous prime is 6670166087443. The next prime is 6670166087509. The reversal of 6670166087451 is 1547806610766.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6670166087451 - 2³ = 6670166087443 is a prime.

It is a super-2 number, since 2×6670166087451² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6670166087391 and 6670166087400.

It is not an unprimeable number, because it can be changed into a prime (6670166087951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1111694347906 + ... + 1111694347911.

It is an arithmetic number, because the mean of its divisors is an integer number (2223388695818).

Almost surely, 2^{6670166087451} is an apocalyptic number.

6670166087451 is a deficient number, since it is larger than the sum of its proper divisors (2223388695821).

6670166087451 is a wasteful number, since it uses less digits than its factorization.

6670166087451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223388695820.

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 6670166087451 in words is "six trillion, six hundred seventy billion, one hundred sixty-six million, eighty-seven thousand, four hundred fifty-one".