201551013345 has 64 divisors (see below), whose sum is σ = 361921976064. Its totient is φ = 94918533120.

The previous prime is 201551013329. The next prime is 201551013409. The reversal of 201551013345 is 543310155102.

It is not a de Polignac number, because 201551013345 - 2⁴ = 201551013329 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3592429 + ... + 3648101.

It is an arithmetic number, because the mean of its divisors is an integer number (5655030876).

Almost surely, 2^201551013345 is an apocalyptic number.

It is an amenable number.

201551013345 is a deficient number, since it is larger than the sum of its proper divisors (160370962719).

201551013345 is a wasteful number, since it uses less digits than its factorization.

201551013345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56322.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 201551013345 its reverse (543310155102), we get a palindrome (744861168447).

The spelling of 201551013345 in words is "two hundred one billion, five hundred fifty-one million, thirteen thousand, three hundred forty-five".