254040352155 has 24 divisors (see below), whose sum is σ = 443141314512. Its totient is φ = 134625201984.

The previous prime is 254040352129. The next prime is 254040352211. The reversal of 254040352155 is 551253040452.

254040352155 is a `hidden beast` number, since 2 + 5 + 40 + 40 + 3 + 521 + 55 = 666.

It is not a de Polignac number, because 254040352155 - 2⁸ = 254040351899 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17971729 + ... + 17985858.

It is an arithmetic number, because the mean of its divisors is an integer number (18464221438).

Almost surely, 2^254040352155 is an apocalyptic number.

254040352155 is a deficient number, since it is larger than the sum of its proper divisors (189100962357).

254040352155 is a wasteful number, since it uses less digits than its factorization.

254040352155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35957755 (or 35957752 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 254040352155 in words is "two hundred fifty-four billion, forty million, three hundred fifty-two thousand, one hundred fifty-five".