254665443140 has 24 divisors (see below), whose sum is σ = 535021952640. Its totient is φ = 101823411168.

The previous prime is 254665443127. The next prime is 254665443199. The reversal of 254665443140 is 41344566452.

It is a junction number, because it is equal to n+sod(n) for n = 254665443091 and 254665443100.

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, 2624030 + ... + 2719349.

It is an arithmetic number, because the mean of its divisors is an integer number (22292581360).

Almost surely, 2^254665443140 is an apocalyptic number.

254665443140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254665443140 is an abundant number, since it is smaller than the sum of its proper divisors (280356509500).

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

254665443140 is a wasteful number, since it uses less digits than its factorization.

254665443140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5345771 (or 5345769 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 44.

The spelling of 254665443140 in words is "two hundred fifty-four billion, six hundred sixty-five million, four hundred forty-three thousand, one hundred forty".