20150243215430 has 8 divisors (see below), whose sum is σ = 36270437787792. Its totient is φ = 8060097286168.

The previous prime is 20150243215307. The next prime is 20150243215433. The reversal of 20150243215430 is 3451234205102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20150243215433) 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, 1007512160762 + ... + 1007512160781.

It is an arithmetic number, because the mean of its divisors is an integer number (4533804723474).

Almost surely, 2^{20150243215430} is an apocalyptic number.

20150243215430 is a deficient number, since it is larger than the sum of its proper divisors (16120194572362).

20150243215430 is a wasteful number, since it uses less digits than its factorization.

20150243215430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015024321550.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 20150243215430 in words is "twenty trillion, one hundred fifty billion, two hundred forty-three million, two hundred fifteen thousand, four hundred thirty".