20500650616570 has 16 divisors (see below), whose sum is σ = 36935885306880. Its totient is φ = 8192545980624.

The previous prime is 20500650616559. The next prime is 20500650616571. The reversal of 20500650616570 is 7561605600502.

It is not an unprimeable number, because it can be changed into a prime (20500650616571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964272090 + ... + 964293349.

It is an arithmetic number, because the mean of its divisors is an integer number (2308492831680).

Almost surely, 2^{20500650616570} is an apocalyptic number.

20500650616570 is a deficient number, since it is larger than the sum of its proper divisors (16435234690310).

20500650616570 is a wasteful number, since it uses less digits than its factorization.

20500650616570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928566509.

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 20500650616570 in words is "twenty trillion, five hundred billion, six hundred fifty million, six hundred sixteen thousand, five hundred seventy".