1640071070004 has 48 divisors (see below), whose sum is σ = 3841980992640. Its totient is φ = 544530564480.

The previous prime is 1640071069979. The next prime is 1640071070009. The reversal of 1640071070004 is 4000701700461.

It is a super-2 number, since 2×1640071070004² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1640071070009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2805414 + ... + 3339234.

It is an arithmetic number, because the mean of its divisors is an integer number (80041270680).

Almost surely, 2^{1640071070004} is an apocalyptic number.

It is an amenable number.

1640071070004 is an abundant number, since it is smaller than the sum of its proper divisors (2201909922636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1640071070004 is a wasteful number, since it uses less digits than its factorization.

1640071070004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534840 (or 534838 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

Adding to 1640071070004 its reverse (4000701700461), we get a palindrome (5640772770465).

The spelling of 1640071070004 in words is "one trillion, six hundred forty billion, seventy-one million, seventy thousand, four".