16202161701 has 32 divisors (see below), whose sum is σ = 26194665600. Its totient is φ = 9815984640.

The previous prime is 16202161673. The next prime is 16202161711. The reversal of 16202161701 is 10716120261.

It is a happy number.

16202161701 is a `hidden beast` number, since 1 + 6 + 20 + 21 + 617 + 0 + 1 = 666.

It is not a de Polignac number, because 16202161701 - 2⁶ = 16202161637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16202161711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 998485 + ... + 1014581.

It is an arithmetic number, because the mean of its divisors is an integer number (818583300).

Almost surely, 2^16202161701 is an apocalyptic number.

16202161701 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16202161701 is a deficient number, since it is larger than the sum of its proper divisors (9992503899).

16202161701 is a wasteful number, since it uses less digits than its factorization.

16202161701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19506 (or 19500 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

Adding to 16202161701 its reverse (10716120261), we get a palindrome (26918281962).

The spelling of 16202161701 in words is "sixteen billion, two hundred two million, one hundred sixty-one thousand, seven hundred one".