2155396935513 has 8 divisors (see below), whose sum is σ = 2874072268800. Its totient is φ = 1436826446288.

The previous prime is 2155396935469. The next prime is 2155396935521. The reversal of 2155396935513 is 3155396935512.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2155396935513 - 2¹² = 2155396931417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2155396935533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26163033 + ... + 26245286.

It is an arithmetic number, because the mean of its divisors is an integer number (359259033600).

Almost surely, 2^{2155396935513} is an apocalyptic number.

It is an amenable number.

2155396935513 is a deficient number, since it is larger than the sum of its proper divisors (718675333287).

2155396935513 is a wasteful number, since it uses less digits than its factorization.

2155396935513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52422031.

The product of its digits is 16402500, while the sum is 57.

Subtracting 2155396935513 from its reverse (3155396935512), we obtain a palindrome (999999999999).

The spelling of 2155396935513 in words is "two trillion, one hundred fifty-five billion, three hundred ninety-six million, nine hundred thirty-five thousand, five hundred thirteen".