10140240221655 has 32 divisors (see below), whose sum is σ = 16270014378240. Its totient is φ = 5392936623360.

The previous prime is 10140240221599. The next prime is 10140240221663. The reversal of 10140240221655 is 55612204204101.

It is a happy number.

It is not a de Polignac number, because 10140240221655 - 2⁸ = 10140240221399 is a prime.

It is a congruent number.

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, 8198536 + ... + 9353954.

It is an arithmetic number, because the mean of its divisors is an integer number (508437949320).

Almost surely, 2^{10140240221655} is an apocalyptic number.

10140240221655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10140240221655 is a deficient number, since it is larger than the sum of its proper divisors (6129774156585).

10140240221655 is a wasteful number, since it uses less digits than its factorization.

10140240221655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157071.

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 10140240221655 its reverse (55612204204101), we get a palindrome (65752444425756).

The spelling of 10140240221655 in words is "ten trillion, one hundred forty billion, two hundred forty million, two hundred twenty-one thousand, six hundred fifty-five".