2555554695578 has 16 divisors (see below), whose sum is σ = 3848027268096. Its totient is φ = 1272879242640.

The previous prime is 2555554695557. The next prime is 2555554695581. The reversal of 2555554695578 is 8755964555552.

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, 24280775 + ... + 24385797.

It is an arithmetic number, because the mean of its divisors is an integer number (240501704256).

Almost surely, 2^{2555554695578} is an apocalyptic number.

2555554695578 is a deficient number, since it is larger than the sum of its proper divisors (1292472572518).

2555554695578 is a wasteful number, since it uses less digits than its factorization.

2555554695578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151549.

The product of its digits is 1890000000, while the sum is 71.

The spelling of 2555554695578 in words is "two trillion, five hundred fifty-five billion, five hundred fifty-four million, six hundred ninety-five thousand, five hundred seventy-eight".