1555012031345 has 16 divisors (see below), whose sum is σ = 1888676358912. Its totient is φ = 1228904532480.

The previous prime is 1555012031281. The next prime is 1555012031387. The reversal of 1555012031345 is 5431302105551.

It is not a de Polignac number, because 1555012031345 - 2⁶ = 1555012031281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4321889 + ... + 4667841.

It is an arithmetic number, because the mean of its divisors is an integer number (118042272432).

Almost surely, 2^{1555012031345} is an apocalyptic number.

It is an amenable number.

1555012031345 is a deficient number, since it is larger than the sum of its proper divisors (333664327567).

1555012031345 is a wasteful number, since it uses less digits than its factorization.

1555012031345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356872.

The product of its (nonzero) digits is 45000, while the sum is 35.

Adding to 1555012031345 its reverse (5431302105551), we get a palindrome (6986314136896).

The spelling of 1555012031345 in words is "one trillion, five hundred fifty-five billion, twelve million, thirty-one thousand, three hundred forty-five".