2016668535 has 32 divisors (see below), whose sum is σ = 3787295232. Its totient is φ = 896987520.

The previous prime is 2016668491. The next prime is 2016668539. The reversal of 2016668535 is 5358666102.

It is a happy number.

It is not a de Polignac number, because 2016668535 - 2⁸ = 2016668279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2016668539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 255661 + ... + 263430.

It is an arithmetic number, because the mean of its divisors is an integer number (118352976).

Almost surely, 2^2016668535 is an apocalyptic number.

2016668535 is a deficient number, since it is larger than the sum of its proper divisors (1770626697).

2016668535 is a wasteful number, since it uses less digits than its factorization.

2016668535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519143.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 2016668535 is about 44907.3327531262. The cubic root of 2016668535 is about 1263.4115438957.

The spelling of 2016668535 in words is "two billion, sixteen million, six hundred sixty-eight thousand, five hundred thirty-five".