201345245551 has 8 divisors (see below), whose sum is σ = 209084811264. Its totient is φ = 193683464760.

The previous prime is 201345245531. The next prime is 201345245627. The reversal of 201345245551 is 155542543102.

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 201345245551 - 2²⁹ = 200808374639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201345245551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201345245531) 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, 19440955 + ... + 19451308.

It is an arithmetic number, because the mean of its divisors is an integer number (26135601408).

Almost surely, 2^201345245551 is an apocalyptic number.

201345245551 is a deficient number, since it is larger than the sum of its proper divisors (7739565713).

201345245551 is a wasteful number, since it uses less digits than its factorization.

201345245551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38892461.

The product of its (nonzero) digits is 120000, while the sum is 37.

Adding to 201345245551 its reverse (155542543102), we get a palindrome (356887788653).

The spelling of 201345245551 in words is "two hundred one billion, three hundred forty-five million, two hundred forty-five thousand, five hundred fifty-one".