16607657240 has 16 divisors (see below), whose sum is σ = 37367228880. Its totient is φ = 6643062880.

The previous prime is 16607657239. The next prime is 16607657243. The reversal of 16607657240 is 4275670661.

It is a junction number, because it is equal to n+sod(n) for n = 16607657191 and 16607657200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16607657243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207595676 + ... + 207595755.

It is an arithmetic number, because the mean of its divisors is an integer number (2335451805).

Almost surely, 2^16607657240 is an apocalyptic number.

16607657240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16607657240 is an abundant number, since it is smaller than the sum of its proper divisors (20759571640).

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

16607657240 is a wasteful number, since it uses less digits than its factorization.

16607657240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415191442 (or 415191438 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 16607657240 in words is "sixteen billion, six hundred seven million, six hundred fifty-seven thousand, two hundred forty".