56146216015 has 4 divisors (see below), whose sum is σ = 67375459224. Its totient is φ = 44916972808.

The previous prime is 56146215953. The next prime is 56146216111. The reversal of 56146216015 is 51061264165.

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

It is a cyclic number.

It is not a de Polignac number, because 56146216015 - 2⁷ = 56146215887 is a prime.

It is a Duffinian number.

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, 5614621597 + ... + 5614621606.

It is an arithmetic number, because the mean of its divisors is an integer number (16843864806).

Almost surely, 2^56146216015 is an apocalyptic number.

56146216015 is a deficient number, since it is larger than the sum of its proper divisors (11229243209).

56146216015 is a wasteful number, since it uses less digits than its factorization.

56146216015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11229243208.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 56146216015 in words is "fifty-six billion, one hundred forty-six million, two hundred sixteen thousand, fifteen".