254136425665 has 32 divisors (see below), whose sum is σ = 325778365440. Its totient is φ = 189971308800.

The previous prime is 254136425659. The next prime is 254136425677. The reversal of 254136425665 is 566524631452.

It is not a de Polignac number, because 254136425665 - 2⁵ = 254136425633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 582151 + ... + 920419.

It is an arithmetic number, because the mean of its divisors is an integer number (10180573920).

Almost surely, 2^254136425665 is an apocalyptic number.

It is an amenable number.

254136425665 is a deficient number, since it is larger than the sum of its proper divisors (71641939775).

254136425665 is a wasteful number, since it uses less digits than its factorization.

254136425665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338473.

The product of its digits is 5184000, while the sum is 49.

The spelling of 254136425665 in words is "two hundred fifty-four billion, one hundred thirty-six million, four hundred twenty-five thousand, six hundred sixty-five".