20616217682 has 16 divisors (see below), whose sum is σ = 32001963840. Its totient is φ = 9949147152.

The previous prime is 20616217651. The next prime is 20616217771. The reversal of 20616217682 is 28671261602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107153 + ... + 229595.

It is an arithmetic number, because the mean of its divisors is an integer number (2000122740).

Almost surely, 2^20616217682 is an apocalyptic number.

20616217682 is a deficient number, since it is larger than the sum of its proper divisors (11385746158).

20616217682 is a wasteful number, since it uses less digits than its factorization.

20616217682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125377.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 20616217682 in words is "twenty billion, six hundred sixteen million, two hundred seventeen thousand, six hundred eighty-two".