1640523431102 has 8 divisors (see below), whose sum is σ = 2462673704016. Its totient is φ = 819632196432.

The previous prime is 1640523431087. The next prime is 1640523431119. The reversal of 1640523431102 is 2011343250461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314756303 + ... + 314761514.

It is an arithmetic number, because the mean of its divisors is an integer number (307834213002).

Almost surely, 2^{1640523431102} is an apocalyptic number.

1640523431102 is a deficient number, since it is larger than the sum of its proper divisors (822150272914).

1640523431102 is a wasteful number, since it uses less digits than its factorization.

1640523431102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629519122.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 1640523431102 its reverse (2011343250461), we get a palindrome (3651866681563).

The spelling of 1640523431102 in words is "one trillion, six hundred forty billion, five hundred twenty-three million, four hundred thirty-one thousand, one hundred two".