1005646642330 has 64 divisors (see below), whose sum is σ = 2015714128896. Its totient is φ = 358150464000.

The previous prime is 1005646642291. The next prime is 1005646642387. The reversal of 1005646642330 is 332466465001.

It is a happy number.

It is a super-2 number, since 2×1005646642330² (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 31 ways as a sum of consecutive naturals, for example, 1241815 + ... + 1885045.

It is an arithmetic number, because the mean of its divisors is an integer number (31495533264).

Almost surely, 2^{1005646642330} is an apocalyptic number.

1005646642330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1005646642330 is an abundant number, since it is smaller than the sum of its proper divisors (1010067486566).

1005646642330 is a wasteful number, since it uses less digits than its factorization.

1005646642330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643543.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 1005646642330 in words is "one trillion, five billion, six hundred forty-six million, six hundred forty-two thousand, three hundred thirty".