201615655613 has 8 divisors (see below), whose sum is σ = 202504830528. Its totient is φ = 200727409824.

The previous prime is 201615655609. The next prime is 201615655621. The reversal of 201615655613 is 316556516102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201615655613 - 2² = 201615655609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201615655673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204470 + ... + 667112.

It is an arithmetic number, because the mean of its divisors is an integer number (25313103816).

Almost surely, 2^201615655613 is an apocalyptic number.

It is an amenable number.

201615655613 is a deficient number, since it is larger than the sum of its proper divisors (889174915).

201615655613 is a wasteful number, since it uses less digits than its factorization.

201615655613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464563.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 201615655613 in words is "two hundred one billion, six hundred fifteen million, six hundred fifty-five thousand, six hundred thirteen".