1555000110056 has 16 divisors (see below), whose sum is σ = 2915638569600. Its totient is φ = 777496491504.

The previous prime is 1555000110043. The next prime is 1555000110067. The reversal of 1555000110056 is 6500110005551.

It is a happy number.

It is a super-2 number, since 2×1555000110056² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2800361 + ... + 3309383.

It is an arithmetic number, because the mean of its divisors is an integer number (182227410600).

Almost surely, 2^{1555000110056} is an apocalyptic number.

It is an amenable number.

1555000110056 is a deficient number, since it is larger than the sum of its proper divisors (1360638459544).

1555000110056 is a wasteful number, since it uses less digits than its factorization.

1555000110056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890888 (or 890884 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 1555000110056 in words is "one trillion, five hundred fifty-five billion, one hundred ten thousand, fifty-six".