1640112237999 has 24 divisors (see below), whose sum is σ = 2394810140112. Its totient is φ = 1081550257920.

The previous prime is 1640112237991. The next prime is 1640112238019. The reversal of 1640112237999 is 9997322110461.

1640112237999 is a `hidden beast` number, since 1 + 6 + 401 + 1 + 223 + 7 + 9 + 9 + 9 = 666.

It is not a de Polignac number, because 1640112237999 - 2³ = 1640112237991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1640112237991) 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, 651754 + ... + 1924839.

It is an arithmetic number, because the mean of its divisors is an integer number (99783755838).

Almost surely, 2^{1640112237999} is an apocalyptic number.

1640112237999 is a deficient number, since it is larger than the sum of its proper divisors (754697902113).

1640112237999 is a wasteful number, since it uses less digits than its factorization.

1640112237999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577367 (or 2577364 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The spelling of 1640112237999 in words is "one trillion, six hundred forty billion, one hundred twelve million, two hundred thirty-seven thousand, nine hundred ninety-nine".