1000550001000 has 128 divisors (see below), whose sum is σ = 3405508479360. Its totient is φ = 242557568000.

The previous prime is 1000550000899. The next prime is 1000550001007. The reversal of 1000550001000 is 1000550001.

It is a super-2 number, since 2×1000550001000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1000550001007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15126849 + ... + 15192848.

It is an arithmetic number, because the mean of its divisors is an integer number (26605534995).

Almost surely, 2^{1000550001000} is an apocalyptic number.

1000550001000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000550001000 is an abundant number, since it is smaller than the sum of its proper divisors (2404958478360).

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

1000550001000 is a wasteful number, since it uses less digits than its factorization.

1000550001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30319732 (or 30319718 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 12.

Adding to 1000550001000 its reverse (1000550001), we get a palindrome (1001550551001).

1000550001000 divided by its reverse (1000550001) gives a cube (1000 = 10³).

It can be divided in two parts, 10005 and 50001000, that added together give a palindrome (50011005).

The spelling of 1000550001000 in words is "one trillion, five hundred fifty million, one thousand".