1550120023315 has 16 divisors (see below), whose sum is σ = 1958138784000. Its totient is φ = 1174772344032.

The previous prime is 1550120023301. The next prime is 1550120023337. The reversal of 1550120023315 is 5133200210551.

It is a cyclic number.

It is not a de Polignac number, because 1550120023315 - 2¹³ = 1550120015123 is a prime.

It is a super-2 number, since 2×1550120023315² (a number of 25 digits) contains 22 as substring.

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, 1696644 + ... + 2445166.

It is an arithmetic number, because the mean of its divisors is an integer number (122383674000).

Almost surely, 2^{1550120023315} is an apocalyptic number.

1550120023315 is a deficient number, since it is larger than the sum of its proper divisors (408018760685).

1550120023315 is a wasteful number, since it uses less digits than its factorization.

1550120023315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770346.

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 1550120023315 its reverse (5133200210551), we get a palindrome (6683320233866).

The spelling of 1550120023315 in words is "one trillion, five hundred fifty billion, one hundred twenty million, twenty-three thousand, three hundred fifteen".