1555105435452 has 72 divisors (see below), whose sum is σ = 3966237475200. Its totient is φ = 513717765120.

The previous prime is 1555105435451. The next prime is 1555105435453. The reversal of 1555105435452 is 2545345015551.

1555105435452 is a `hidden beast` number, since 1 + 5 + 5 + 5 + 1 + 0 + 543 + 54 + 52 = 666.

It is an interprime number because it is at equal distance from previous prime (1555105435451) and next prime (1555105435453).

It is a junction number, because it is equal to n+sod(n) for n = 1555105435398 and 1555105435407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1555105435451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42284752 + ... + 42321512.

It is an arithmetic number, because the mean of its divisors is an integer number (55086631600).

Almost surely, 2^{1555105435452} is an apocalyptic number.

1555105435452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1555105435452 is an abundant number, since it is smaller than the sum of its proper divisors (2411132039748).

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

1555105435452 is a wasteful number, since it uses less digits than its factorization.

1555105435452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47283 (or 47278 counting only the distinct ones).

The product of its (nonzero) digits is 1500000, while the sum is 45.

The spelling of 1555105435452 in words is "one trillion, five hundred fifty-five billion, one hundred five million, four hundred thirty-five thousand, four hundred fifty-two".