1051670456591 has 2 divisors, whose sum is σ = 1051670456592. Its totient is φ = 1051670456590.

The previous prime is 1051670456579. The next prime is 1051670456611. The reversal of 1051670456591 is 1956540761501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1051670456591 - 2²⁶ = 1051603347727 is a prime.

It is a super-2 number, since 2×1051670456591² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051670456891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525835228295 + 525835228296.

It is an arithmetic number, because the mean of its divisors is an integer number (525835228296).

Almost surely, 2^{1051670456591} is an apocalyptic number.

1051670456591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051670456591 is an equidigital number, since it uses as much as digits as its factorization.

1051670456591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134000, while the sum is 50.

The spelling of 1051670456591 in words is "one trillion, fifty-one billion, six hundred seventy million, four hundred fifty-six thousand, five hundred ninety-one".