1640024313340 has 96 divisors (see below), whose sum is σ = 4003477954560. Its totient is φ = 552666049536.

The previous prime is 1640024313331. The next prime is 1640024313349. The reversal of 1640024313340 is 433134200461.

It is an interprime number because it is at equal distance from previous prime (1640024313331) and next prime (1640024313349).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1640024313349) 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 31 ways as a sum of consecutive naturals, for example, 58656804 + ... + 58684756.

It is an arithmetic number, because the mean of its divisors is an integer number (41702895360).

Almost surely, 2^{1640024313340} is an apocalyptic number.

1640024313340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1640024313340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2001738977280).

1640024313340 is an abundant number, since it is smaller than the sum of its proper divisors (2363453641220).

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

1640024313340 is a wasteful number, since it uses less digits than its factorization.

1640024313340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35131 (or 35129 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 1640024313340 in words is "one trillion, six hundred forty billion, twenty-four million, three hundred thirteen thousand, three hundred forty".