1671051376645 has 32 divisors (see below), whose sum is σ = 2414118631680. Its totient is φ = 1084756976640.

The previous prime is 1671051376637. The next prime is 1671051376667. The reversal of 1671051376645 is 5466731501761.

It is not a de Polignac number, because 1671051376645 - 2³ = 1671051376637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1671051376592 and 1671051376601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18102 + ... + 1828231.

It is an arithmetic number, because the mean of its divisors is an integer number (75441207240).

Almost surely, 2^{1671051376645} is an apocalyptic number.

It is an amenable number.

1671051376645 is a deficient number, since it is larger than the sum of its proper divisors (743067255035).

1671051376645 is a wasteful number, since it uses less digits than its factorization.

1671051376645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847725.

The product of its (nonzero) digits is 3175200, while the sum is 52.

The spelling of 1671051376645 in words is "one trillion, six hundred seventy-one billion, fifty-one million, three hundred seventy-six thousand, six hundred forty-five".