215542340030 has 8 divisors (see below), whose sum is σ = 387976212072. Its totient is φ = 86216936008.

The previous prime is 215542340011. The next prime is 215542340099. The reversal of 215542340030 is 30043245512.

It is a happy number.

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 = 215542339975 and 215542340002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10777116992 + ... + 10777117011.

It is an arithmetic number, because the mean of its divisors is an integer number (48497026509).

Almost surely, 2^215542340030 is an apocalyptic number.

215542340030 is a deficient number, since it is larger than the sum of its proper divisors (172433872042).

215542340030 is a wasteful number, since it uses less digits than its factorization.

215542340030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21554234010.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 215542340030 its reverse (30043245512), we get a palindrome (245585585542).

The spelling of 215542340030 in words is "two hundred fifteen billion, five hundred forty-two million, three hundred forty thousand, thirty".