1516985016697 has 16 divisors (see below), whose sum is σ = 1566482890752. Its totient is φ = 1468279930320.

The previous prime is 1516985016683. The next prime is 1516985016817. The reversal of 1516985016697 is 7966105896151.

It is a cyclic number.

It is not a de Polignac number, because 1516985016697 - 2¹⁵ = 1516984983929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1516985016607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1447768 + ... + 2264950.

It is an arithmetic number, because the mean of its divisors is an integer number (97905180672).

Almost surely, 2^{1516985016697} is an apocalyptic number.

It is an amenable number.

1516985016697 is a deficient number, since it is larger than the sum of its proper divisors (49497874055).

1516985016697 is a wasteful number, since it uses less digits than its factorization.

1516985016697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817668.

The product of its (nonzero) digits is 24494400, while the sum is 64.

The spelling of 1516985016697 in words is "one trillion, five hundred sixteen billion, nine hundred eighty-five million, sixteen thousand, six hundred ninety-seven".