1005556672005 has 16 divisors (see below), whose sum is σ = 1609213024320. Its totient is φ = 536189442048.

The previous prime is 1005556671989. The next prime is 1005556672037. The reversal of 1005556672005 is 5002766555001.

It is a happy number.

1005556672005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1005556672005 - 2⁴ = 1005556671989 is a prime.

It is a super-2 number, since 2×1005556672005² (a number of 25 digits) contains 22 as substring.

It is a congruent 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, 6638215 + ... + 6788004.

It is an arithmetic number, because the mean of its divisors is an integer number (100575814020).

Almost surely, 2^{1005556672005} is an apocalyptic number.

1005556672005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1005556672005 is a deficient number, since it is larger than the sum of its proper divisors (603656352315).

1005556672005 is a wasteful number, since it uses less digits than its factorization.

1005556672005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13431220.

The product of its (nonzero) digits is 315000, while the sum is 42.

The spelling of 1005556672005 in words is "one trillion, five billion, five hundred fifty-six million, six hundred seventy-two thousand, five".