2251154166204 has 48 divisors (see below), whose sum is σ = 5455271959200. Its totient is φ = 721900624896.

The previous prime is 2251154166143. The next prime is 2251154166229. The reversal of 2251154166204 is 4026614511522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28444569 + ... + 28523600.

It is an arithmetic number, because the mean of its divisors is an integer number (113651499150).

Almost surely, 2^{2251154166204} is an apocalyptic number.

It is an amenable number.

2251154166204 is an abundant number, since it is smaller than the sum of its proper divisors (3204117792996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2251154166204 is a wasteful number, since it uses less digits than its factorization.

2251154166204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56968302 (or 56968300 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

Adding to 2251154166204 its reverse (4026614511522), we get a palindrome (6277768677726).

The spelling of 2251154166204 in words is "two trillion, two hundred fifty-one billion, one hundred fifty-four million, one hundred sixty-six thousand, two hundred four".