1000660651567 has 8 divisors (see below), whose sum is σ = 1054917476352. Its totient is φ = 947777417400.

The previous prime is 1000660651513. The next prime is 1000660651651. The reversal of 1000660651567 is 7651560660001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000660651567 - 2¹⁵ = 1000660618799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000640651567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343396159 + ... + 343399072.

It is an arithmetic number, because the mean of its divisors is an integer number (131864684544).

Almost surely, 2^{1000660651567} is an apocalyptic number.

1000660651567 is a deficient number, since it is larger than the sum of its proper divisors (54256824785).

1000660651567 is an equidigital number, since it uses as much as digits as its factorization.

1000660651567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686795309.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 1000660651567 in words is "one trillion, six hundred sixty million, six hundred fifty-one thousand, five hundred sixty-seven".