2451661677616 has 20 divisors (see below), whose sum is σ = 4778538185232. Its totient is φ = 1218490533056.

The previous prime is 2451661677607. The next prime is 2451661677649. The reversal of 2451661677616 is 6167761661542.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458766355 + ... + 458771698.

Almost surely, 2^{2451661677616} is an apocalyptic number.

It is an amenable number.

2451661677616 is a deficient number, since it is larger than the sum of its proper divisors (2326876507616).

2451661677616 is a wasteful number, since it uses less digits than its factorization.

2451661677616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917538228 (or 917538222 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 58.

The spelling of 2451661677616 in words is "two trillion, four hundred fifty-one billion, six hundred sixty-one million, six hundred seventy-seven thousand, six hundred sixteen".