16617204712 has 32 divisors (see below), whose sum is σ = 31688016480. Its totient is φ = 8167239360.

The previous prime is 16617204649. The next prime is 16617204713. The reversal of 16617204712 is 21740271661.

It is a super-2 number, since 2×16617204712² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16617204713) 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, 830943 + ... + 850705.

It is an arithmetic number, because the mean of its divisors is an integer number (990250515).

Almost surely, 2^16617204712 is an apocalyptic number.

It is an amenable number.

16617204712 is a deficient number, since it is larger than the sum of its proper divisors (15070811768).

16617204712 is a wasteful number, since it uses less digits than its factorization.

16617204712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21553 (or 21549 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 16617204712 in words is "sixteen billion, six hundred seventeen million, two hundred four thousand, seven hundred twelve".