254252351166 has 128 divisors (see below), whose sum is σ = 577909555200. Its totient is φ = 73866764160.

The previous prime is 254252351153. The next prime is 254252351257. The reversal of 254252351166 is 661153252452.

It is a congruent number.

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, 198789315 + ... + 198790593.

It is an arithmetic number, because the mean of its divisors is an integer number (4514918400).

Almost surely, 2^254252351166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 254252351166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288954777600).

254252351166 is an abundant number, since it is smaller than the sum of its proper divisors (323657204034).

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

254252351166 is a wasteful number, since it uses less digits than its factorization.

254252351166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1974.

The product of its digits is 432000, while the sum is 42.

The spelling of 254252351166 in words is "two hundred fifty-four billion, two hundred fifty-two million, three hundred fifty-one thousand, one hundred sixty-six".