20566876315 has 16 divisors (see below), whose sum is σ = 24948900000. Its totient is φ = 16274990592.

The previous prime is 20566876283. The next prime is 20566876361. The reversal of 20566876315 is 51367866502.

It is a cyclic number.

It is not a de Polignac number, because 20566876315 - 2⁵ = 20566876283 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245461 + ... + 318409.

It is an arithmetic number, because the mean of its divisors is an integer number (1559306250).

Almost surely, 2^20566876315 is an apocalyptic number.

20566876315 is a deficient number, since it is larger than the sum of its proper divisors (4382023685).

20566876315 is a wasteful number, since it uses less digits than its factorization.

20566876315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73566.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 20566876315 in words is "twenty billion, five hundred sixty-six million, eight hundred seventy-six thousand, three hundred fifteen".