1555120624245 has 16 divisors (see below), whose sum is σ = 2491017302592. Its totient is φ = 828456231680.

The previous prime is 1555120624207. The next prime is 1555120624273. The reversal of 1555120624245 is 5424260215551.

It is not a de Polignac number, because 1555120624245 - 2³² = 1550825656949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1555120624197 and 1555120624206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58826007 + ... + 58852436.

It is an arithmetic number, because the mean of its divisors is an integer number (155688581412).

Almost surely, 2^{1555120624245} is an apocalyptic number.

1555120624245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1555120624245 is a deficient number, since it is larger than the sum of its proper divisors (935896678347).

1555120624245 is a wasteful number, since it uses less digits than its factorization.

1555120624245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117679332.

The product of its (nonzero) digits is 480000, while the sum is 42.

Adding to 1555120624245 its reverse (5424260215551), we get a palindrome (6979380839796).

The spelling of 1555120624245 in words is "one trillion, five hundred fifty-five billion, one hundred twenty million, six hundred twenty-four thousand, two hundred forty-five".