1555234554156 has 12 divisors (see below), whose sum is σ = 3628880626392. Its totient is φ = 518411518048.

The previous prime is 1555234554121. The next prime is 1555234554193. The reversal of 1555234554156 is 6514554325551.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1555234554099 and 1555234554108.

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, 64801439745 + ... + 64801439768.

It is an arithmetic number, because the mean of its divisors is an integer number (302406718866).

Almost surely, 2^{1555234554156} is an apocalyptic number.

It is an amenable number.

1555234554156 is an abundant number, since it is smaller than the sum of its proper divisors (2073646072236).

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

1555234554156 is a wasteful number, since it uses less digits than its factorization.

1555234554156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129602879520 (or 129602879518 counting only the distinct ones).

The product of its digits is 9000000, while the sum is 51.

The spelling of 1555234554156 in words is "one trillion, five hundred fifty-five billion, two hundred thirty-four million, five hundred fifty-four thousand, one hundred fifty-six".