1555130706612 has 96 divisors (see below), whose sum is σ = 4225781919744. Its totient is φ = 435885840000.

The previous prime is 1555130706607. The next prime is 1555130706653. The reversal of 1555130706612 is 2166070315551.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 48203487 + ... + 48235737.

It is an arithmetic number, because the mean of its divisors is an integer number (44018561664).

Almost surely, 2^{1555130706612} is an apocalyptic number.

1555130706612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1555130706612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2112890959872).

1555130706612 is an abundant number, since it is smaller than the sum of its proper divisors (2670651213132).

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

1555130706612 is a wasteful number, since it uses less digits than its factorization.

1555130706612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43149 (or 43147 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 42.

The spelling of 1555130706612 in words is "one trillion, five hundred fifty-five billion, one hundred thirty million, seven hundred six thousand, six hundred twelve".