20617369070946 has 32 divisors (see below), whose sum is σ = 43660762803648. Its totient is φ = 6468127280640.

The previous prime is 20617369070941. The next prime is 20617369070957. The reversal of 20617369070946 is 64907096371602.

It is a self number, because there is not a number n which added to its sum of digits gives 20617369070946.

It is not an unprimeable number, because it can be changed into a prime (20617369070941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9364101 + ... + 11354343.

It is an arithmetic number, because the mean of its divisors is an integer number (1364398837614).

Almost surely, 2^{20617369070946} is an apocalyptic number.

20617369070946 is an abundant number, since it is smaller than the sum of its proper divisors (23043393732702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20617369070946 is a wasteful number, since it uses less digits than its factorization.

20617369070946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091826.

The product of its (nonzero) digits is 20575296, while the sum is 60.

The spelling of 20617369070946 in words is "twenty trillion, six hundred seventeen billion, three hundred sixty-nine million, seventy thousand, nine hundred forty-six".