20140242615 has 24 divisors (see below), whose sum is σ = 35010385488. Its totient is φ = 10710499200.

The previous prime is 20140242607. The next prime is 20140242637. The reversal of 20140242615 is 51624204102.

20140242615 is a `hidden beast` number, since 2 + 0 + 1 + 4 + 0 + 2 + 42 + 615 = 666.

It is not a de Polignac number, because 20140242615 - 2³ = 20140242607 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 629286 + ... + 660515.

It is an arithmetic number, because the mean of its divisors is an integer number (1458766062).

Almost surely, 2^20140242615 is an apocalyptic number.

20140242615 is a deficient number, since it is larger than the sum of its proper divisors (14870142873).

20140242615 is a wasteful number, since it uses less digits than its factorization.

20140242615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290159 (or 1290156 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 20140242615 its reverse (51624204102), we get a palindrome (71764446717).

The spelling of 20140242615 in words is "twenty billion, one hundred forty million, two hundred forty-two thousand, six hundred fifteen".