201665614604 has 48 divisors (see below), whose sum is σ = 393534288000. Its totient is φ = 89862610176.

The previous prime is 201665614583. The next prime is 201665614609. The reversal of 201665614604 is 406416566102.

201665614604 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×201665614604² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201665614609) 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, 2674727 + ... + 2749089.

It is an arithmetic number, because the mean of its divisors is an integer number (8198631000).

Almost surely, 2^201665614604 is an apocalyptic number.

It is an amenable number.

201665614604 is a deficient number, since it is larger than the sum of its proper divisors (191868673396).

201665614604 is a wasteful number, since it uses less digits than its factorization.

201665614604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76502 (or 76500 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 201665614604 in words is "two hundred one billion, six hundred sixty-five million, six hundred fourteen thousand, six hundred four".