215006423054 has 4 divisors (see below), whose sum is σ = 322509634584. Its totient is φ = 107503211526.

The previous prime is 215006423041. The next prime is 215006423069. The reversal of 215006423054 is 450324600512.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 215006423054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53751605762 + ... + 53751605765.

It is an arithmetic number, because the mean of its divisors is an integer number (80627408646).

Almost surely, 2^215006423054 is an apocalyptic number.

215006423054 is a deficient number, since it is larger than the sum of its proper divisors (107503211530).

215006423054 is a wasteful number, since it uses less digits than its factorization.

215006423054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107503211529.

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

The spelling of 215006423054 in words is "two hundred fifteen billion, six million, four hundred twenty-three thousand, fifty-four".