1655230374215 has 16 divisors (see below), whose sum is σ = 2168302379040. Its totient is φ = 1202995384320.

The previous prime is 1655230374101. The next prime is 1655230374221. The reversal of 1655230374215 is 5124730325561.

It is not a de Polignac number, because 1655230374215 - 2²⁰ = 1655229325639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10023914 + ... + 10187703.

It is an arithmetic number, because the mean of its divisors is an integer number (135518898690).

Almost surely, 2^{1655230374215} is an apocalyptic number.

1655230374215 is a deficient number, since it is larger than the sum of its proper divisors (513072004825).

1655230374215 is a wasteful number, since it uses less digits than its factorization.

1655230374215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20213122.

The product of its (nonzero) digits is 756000, while the sum is 44.

Adding to 1655230374215 its reverse (5124730325561), we get a palindrome (6779960699776).

The spelling of 1655230374215 in words is "one trillion, six hundred fifty-five billion, two hundred thirty million, three hundred seventy-four thousand, two hundred fifteen".