16920680760 has 64 divisors (see below), whose sum is σ = 56402272800. Its totient is φ = 4512181248.

The previous prime is 16920680743. The next prime is 16920680783. The reversal of 16920680760 is 6708602961.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7832569 + ... + 7834728.

Almost surely, 2^16920680760 is an apocalyptic number.

16920680760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16920680760 is an abundant number, since it is smaller than the sum of its proper divisors (39481592040).

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

16920680760 is a wasteful number, since it uses less digits than its factorization.

16920680760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15667317 (or 15667307 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 16920680760 in words is "sixteen billion, nine hundred twenty million, six hundred eighty thousand, seven hundred sixty".