1640112237994 has 16 divisors (see below), whose sum is σ = 2489654534400. Its totient is φ = 810269307504.

The previous prime is 1640112237991. The next prime is 1640112238019. The reversal of 1640112237994 is 4997322110461.

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 7 ways as a sum of consecutive naturals, for example, 10400082 + ... + 10556605.

It is an arithmetic number, because the mean of its divisors is an integer number (155603408400).

Almost surely, 2^{1640112237994} is an apocalyptic number.

1640112237994 is a deficient number, since it is larger than the sum of its proper divisors (849542296406).

1640112237994 is a wasteful number, since it uses less digits than its factorization.

1640112237994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20957157.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 1640112237994 in words is "one trillion, six hundred forty billion, one hundred twelve million, two hundred thirty-seven thousand, nine hundred ninety-four".