1001555112299 has 24 divisors (see below), whose sum is σ = 1206226689408. Its totient is φ = 828317387520.

The previous prime is 1001555112289. The next prime is 1001555112301. The reversal of 1001555112299 is 9922115551001.

1001555112299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-1001555112299 is a prime.

It is a super-2 number, since 2×1001555112299² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1001555112289) 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, 466364 + ... + 1490169.

It is an arithmetic number, because the mean of its divisors is an integer number (50259445392).

Almost surely, 2^{1001555112299} is an apocalyptic number.

1001555112299 is a deficient number, since it is larger than the sum of its proper divisors (204671577109).

1001555112299 is a wasteful number, since it uses less digits than its factorization.

1001555112299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956915 (or 1956908 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 41.

The spelling of 1001555112299 in words is "one trillion, one billion, five hundred fifty-five million, one hundred twelve thousand, two hundred ninety-nine".