16707217212 has 36 divisors (see below), whose sum is σ = 48265294896. Its totient is φ = 4773490560.

The previous prime is 16707217201. The next prime is 16707217253. The reversal of 16707217212 is 21271270761.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×16707217212² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33148989 + ... + 33149492.

It is an arithmetic number, because the mean of its divisors is an integer number (1340702636).

Almost surely, 2^16707217212 is an apocalyptic number.

16707217212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16707217212 is an abundant number, since it is smaller than the sum of its proper divisors (31558077684).

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

16707217212 is a wasteful number, since it uses less digits than its factorization.

16707217212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66298498 (or 66298493 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 36.

Adding to 16707217212 its reverse (21271270761), we get a palindrome (37978487973).

The spelling of 16707217212 in words is "sixteen billion, seven hundred seven million, two hundred seventeen thousand, two hundred twelve".