5615881646 has 8 divisors (see below), whose sum is σ = 8424738504. Its totient is φ = 2807635480.

The previous prime is 5615881633. The next prime is 5615881651. The reversal of 5615881646 is 6461885165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5615881594 and 5615881603.

It is a congruent 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, 128945 + ... + 166908.

It is an arithmetic number, because the mean of its divisors is an integer number (1053092313).

Almost surely, 2^5615881646 is an apocalyptic number.

5615881646 is a deficient number, since it is larger than the sum of its proper divisors (2808856858).

5615881646 is a wasteful number, since it uses less digits than its factorization.

5615881646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305346.

The product of its digits is 1382400, while the sum is 50.

The square root of 5615881646 is about 74939.1863179739. The cubic root of 5615881646 is about 1777.4851543734.

The spelling of 5615881646 in words is "five billion, six hundred fifteen million, eight hundred eighty-one thousand, six hundred forty-six".