1815295434164 has 12 divisors (see below), whose sum is σ = 3343965273600. Its totient is φ = 859876784568.

The previous prime is 1815295434163. The next prime is 1815295434287. The reversal of 1815295434164 is 4614345925181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1815295434163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11942733044 + ... + 11942733195.

It is an arithmetic number, because the mean of its divisors is an integer number (278663772800).

Almost surely, 2^{1815295434164} is an apocalyptic number.

It is an amenable number.

1815295434164 is a deficient number, since it is larger than the sum of its proper divisors (1528669839436).

1815295434164 is a wasteful number, since it uses less digits than its factorization.

1815295434164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23885466262 (or 23885466260 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 53.

The spelling of 1815295434164 in words is "one trillion, eight hundred fifteen billion, two hundred ninety-five million, four hundred thirty-four thousand, one hundred sixty-four".