1660297757951 has 8 divisors (see below), whose sum is σ = 1908083617920. Its totient is φ = 1415162014488.

The previous prime is 1660297757879. The next prime is 1660297757999. The reversal of 1660297757951 is 1597577920661.

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 1660297757951 - 2¹⁰ = 1660297756927 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 (1660291757951) 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, 662527781 + ... + 662530286.

It is an arithmetic number, because the mean of its divisors is an integer number (238510452240).

Almost surely, 2^{1660297757951} is an apocalyptic number.

1660297757951 is a deficient number, since it is larger than the sum of its proper divisors (247785859969).

1660297757951 is a wasteful number, since it uses less digits than its factorization.

1660297757951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325058253.

The product of its (nonzero) digits is 50009400, while the sum is 65.

The spelling of 1660297757951 in words is "one trillion, six hundred sixty billion, two hundred ninety-seven million, seven hundred fifty-seven thousand, nine hundred fifty-one".