20015372042730 has 48 divisors (see below), whose sum is σ = 52041390395904. Its totient is φ = 5337286587360.

The previous prime is 20015372042689. The next prime is 20015372042749. The reversal of 20015372042730 is 3724027351002.

20015372042730 is a `hidden beast` number, since 2 + 0 + 0 + 15 + 372 + 0 + 4 + 273 + 0 = 666.

It is a Curzon 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, 288807 + ... + 6333573.

It is an arithmetic number, because the mean of its divisors is an integer number (1084195633248).

Almost surely, 2^{20015372042730} is an apocalyptic number.

20015372042730 is an abundant number, since it is smaller than the sum of its proper divisors (32026018353174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20015372042730 is a wasteful number, since it uses less digits than its factorization.

20015372042730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6081571 (or 6081568 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

Adding to 20015372042730 its reverse (3724027351002), we get a palindrome (23739399393732).

The spelling of 20015372042730 in words is "twenty trillion, fifteen billion, three hundred seventy-two million, forty-two thousand, seven hundred thirty".