1005606051550 has 48 divisors (see below), whose sum is σ = 1980796671792. Its totient is φ = 378515289600.

The previous prime is 1005606051473. The next prime is 1005606051551. The reversal of 1005606051550 is 551506065001.

It is a super-2 number, since 2×1005606051550² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005606051551) 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, 4934680 + ... + 5134420.

It is an arithmetic number, because the mean of its divisors is an integer number (41266597329).

Almost surely, 2^{1005606051550} is an apocalyptic number.

1005606051550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1005606051550 is a deficient number, since it is larger than the sum of its proper divisors (975190620242).

1005606051550 is a wasteful number, since it uses less digits than its factorization.

1005606051550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205693 (or 205688 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 1005606051550 in words is "one trillion, five billion, six hundred six million, fifty-one thousand, five hundred fifty".