1000660651651 has 2 divisors, whose sum is σ = 1000660651652. Its totient is φ = 1000660651650.

The previous prime is 1000660651513. The next prime is 1000660651657. The reversal of 1000660651651 is 1561560660001.

1000660651651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000660651651 - 2¹⁵ = 1000660618883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1000660651651.

It is not a weakly prime, because it can be changed into another prime (1000660651657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500330325825 + 500330325826.

It is an arithmetic number, because the mean of its divisors is an integer number (500330325826).

Almost surely, 2^{1000660651651} is an apocalyptic number.

1000660651651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000660651651 is an equidigital number, since it uses as much as digits as its factorization.

1000660651651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 1000660651651 in words is "one trillion, six hundred sixty million, six hundred fifty-one thousand, six hundred fifty-one".