5611642645 has 16 divisors (see below), whose sum is σ = 7697697408. Its totient is φ = 3847118400.

The previous prime is 5611642627. The next prime is 5611642657. The reversal of 5611642645 is 5462461165.

It is not a de Polignac number, because 5611642645 - 2¹⁵ = 5611609877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5611642598 and 5611642607.

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, 166470 + ... + 197320.

It is an arithmetic number, because the mean of its divisors is an integer number (481106088).

Almost surely, 2^5611642645 is an apocalyptic number.

It is an amenable number.

5611642645 is a deficient number, since it is larger than the sum of its proper divisors (2086054763).

5611642645 is a wasteful number, since it uses less digits than its factorization.

5611642645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36060.

The product of its digits is 172800, while the sum is 40.

The square root of 5611642645 is about 74910.8980389369. The cubic root of 5611642645 is about 1777.0378124466.

The spelling of 5611642645 in words is "five billion, six hundred eleven million, six hundred forty-two thousand, six hundred forty-five".