2155501204315 has 8 divisors (see below), whose sum is σ = 2675794598640. Its totient is φ = 1664938861152.

The previous prime is 2155501204277. The next prime is 2155501204327. The reversal of 2155501204315 is 5134021055512.

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 2155501204315 - 2⁷ = 2155501204187 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7432762629 + ... + 7432762918.

It is an arithmetic number, because the mean of its divisors is an integer number (334474324830).

Almost surely, 2^{2155501204315} is an apocalyptic number.

2155501204315 is a deficient number, since it is larger than the sum of its proper divisors (520293394325).

2155501204315 is a wasteful number, since it uses less digits than its factorization.

2155501204315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14865525581.

The product of its (nonzero) digits is 30000, while the sum is 34.

Adding to 2155501204315 its reverse (5134021055512), we get a palindrome (7289522259827).

The spelling of 2155501204315 in words is "two trillion, one hundred fifty-five billion, five hundred one million, two hundred four thousand, three hundred fifteen".