16780117532 has 6 divisors (see below), whose sum is σ = 29365205688. Its totient is φ = 8390058764.

The previous prime is 16780117507. The next prime is 16780117537. The reversal of 16780117532 is 23571108761.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16780117532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16780117537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2097514688 + ... + 2097514695.

It is an arithmetic number, because the mean of its divisors is an integer number (4894200948).

Almost surely, 2^16780117532 is an apocalyptic number.

It is an amenable number.

16780117532 is a deficient number, since it is larger than the sum of its proper divisors (12585088156).

16780117532 is a wasteful number, since it uses less digits than its factorization.

16780117532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195029387 (or 4195029385 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 41.

The spelling of 16780117532 in words is "sixteen billion, seven hundred eighty million, one hundred seventeen thousand, five hundred thirty-two".