2153465615515 has 32 divisors (see below), whose sum is σ = 2716409203200. Its totient is φ = 1635715192320.

The previous prime is 2153465615513. The next prime is 2153465615527. The reversal of 2153465615515 is 5155165643512.

It is not a de Polignac number, because 2153465615515 - 2¹ = 2153465615513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2153465615513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131212660 + ... + 131229070.

It is an arithmetic number, because the mean of its divisors is an integer number (84887787600).

Almost surely, 2^{2153465615515} is an apocalyptic number.

2153465615515 is a deficient number, since it is larger than the sum of its proper divisors (562943587685).

2153465615515 is a wasteful number, since it uses less digits than its factorization.

2153465615515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24787.

The product of its digits is 2700000, while the sum is 49.

The spelling of 2153465615515 in words is "two trillion, one hundred fifty-three billion, four hundred sixty-five million, six hundred fifteen thousand, five hundred fifteen".