201662013804 has 24 divisors (see below), whose sum is σ = 470552076288. Its totient is φ = 67219617360.

The previous prime is 201662013799. The next prime is 201662013827. The reversal of 201662013804 is 408310266102.

It is a super-2 number, since 2×201662013804² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1221849 + ... + 1377039.

It is an arithmetic number, because the mean of its divisors is an integer number (19606336512).

Almost surely, 2^201662013804 is an apocalyptic number.

It is an amenable number.

201662013804 is an abundant number, since it is smaller than the sum of its proper divisors (268890062484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201662013804 is a wasteful number, since it uses less digits than its factorization.

201662013804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263485 (or 263483 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

Adding to 201662013804 its reverse (408310266102), we get a palindrome (609972279906).

The spelling of 201662013804 in words is "two hundred one billion, six hundred sixty-two million, thirteen thousand, eight hundred four".