201654322151 has 4 divisors (see below), whose sum is σ = 201655380000. Its totient is φ = 201653264304.

The previous prime is 201654322139. The next prime is 201654322169. The reversal of 201654322151 is 151223456102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 201654322151 - 2¹⁸ = 201654060007 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 (201654322951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154751 + ... + 653648.

It is an arithmetic number, because the mean of its divisors is an integer number (50413845000).

Almost surely, 2^201654322151 is an apocalyptic number.

201654322151 is a deficient number, since it is larger than the sum of its proper divisors (1057849).

201654322151 is an equidigital number, since it uses as much as digits as its factorization.

201654322151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057848.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 201654322151 its reverse (151223456102), we get a palindrome (352877778253).

The spelling of 201654322151 in words is "two hundred one billion, six hundred fifty-four million, three hundred twenty-two thousand, one hundred fifty-one".