1640103341505 has 32 divisors (see below), whose sum is σ = 2738340691200. Its totient is φ = 836665589760.

The previous prime is 1640103341497. The next prime is 1640103341549. The reversal of 1640103341505 is 5051433010461.

It is a happy number.

It is not a de Polignac number, because 1640103341505 - 2³ = 1640103341497 is a prime.

It is a super-3 number, since 3×1640103341505³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19225345 + ... + 19310465.

It is an arithmetic number, because the mean of its divisors is an integer number (85573146600).

Almost surely, 2^{1640103341505} is an apocalyptic number.

1640103341505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1640103341505 is a deficient number, since it is larger than the sum of its proper divisors (1098237349695).

1640103341505 is a wasteful number, since it uses less digits than its factorization.

1640103341505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141001.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 1640103341505 its reverse (5051433010461), we get a palindrome (6691536351966).

The spelling of 1640103341505 in words is "one trillion, six hundred forty billion, one hundred three million, three hundred forty-one thousand, five hundred five".