2151233245205 has 8 divisors (see below), whose sum is σ = 2816159884704. Its totient is φ = 1564533269200.

The previous prime is 2151233245177. The next prime is 2151233245223. The reversal of 2151233245205 is 5025423321512.

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

It is not a de Polignac number, because 2151233245205 - 2⁸ = 2151233244949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19556665811 + ... + 19556665920.

It is an arithmetic number, because the mean of its divisors is an integer number (352019985588).

Almost surely, 2^{2151233245205} is an apocalyptic number.

It is an amenable number.

2151233245205 is a deficient number, since it is larger than the sum of its proper divisors (664926639499).

2151233245205 is a wasteful number, since it uses less digits than its factorization.

2151233245205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39113331747.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 2151233245205 its reverse (5025423321512), we get a palindrome (7176656566717).

The spelling of 2151233245205 in words is "two trillion, one hundred fifty-one billion, two hundred thirty-three million, two hundred forty-five thousand, two hundred five".