1696021811 has 12 divisors (see below), whose sum is σ = 1911826872. Its totient is φ = 1492092000.

The previous prime is 1696021759. The next prime is 1696021829. The reversal of 1696021811 is 1181206961.

It is not a de Polignac number, because 1696021811 - 2¹⁴ = 1696005427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1696021891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69650 + ... + 90791.

It is an arithmetic number, because the mean of its divisors is an integer number (159318906).

Almost surely, 2^1696021811 is an apocalyptic number.

1696021811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1696021811 is a deficient number, since it is larger than the sum of its proper divisors (215805061).

1696021811 is a wasteful number, since it uses less digits than its factorization.

1696021811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160514 (or 160483 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 1696021811 is about 41182.7853720459. The cubic root of 1696021811 is about 1192.5515036788.

The spelling of 1696021811 in words is "one billion, six hundred ninety-six million, twenty-one thousand, eight hundred eleven".