20015380042 has 8 divisors (see below), whose sum is σ = 34312080096. Its totient is φ = 8578020012.

The previous prime is 20015380037. The next prime is 20015380043. The reversal of 20015380042 is 24008351002.

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

It is a junction number, because it is equal to n+sod(n) for n = 20015379989 and 20015380016.

It is not an unprimeable number, because it can be changed into a prime (20015380043) 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, 714834988 + ... + 714835015.

It is an arithmetic number, because the mean of its divisors is an integer number (4289010012).

Almost surely, 2^20015380042 is an apocalyptic number.

20015380042 is a deficient number, since it is larger than the sum of its proper divisors (14296700054).

20015380042 is a wasteful number, since it uses less digits than its factorization.

20015380042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429670012.

The product of its (nonzero) digits is 1920, while the sum is 25.

The spelling of 20015380042 in words is "twenty billion, fifteen million, three hundred eighty thousand, forty-two".