5155616645 has 8 divisors (see below), whose sum is σ = 6195697440. Its totient is φ = 4118521680.

The previous prime is 5155616633. The next prime is 5155616657. The reversal of 5155616645 is 5466165515.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5155616633) and next prime (5155616657).

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

It is a de Polignac number, because none of the positive numbers 2^k-5155616645 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5155616596 and 5155616605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 742655 + ... + 749564.

It is an arithmetic number, because the mean of its divisors is an integer number (774462180).

Almost surely, 2^5155616645 is an apocalyptic number.

It is an amenable number.

5155616645 is a deficient number, since it is larger than the sum of its proper divisors (1040080795).

5155616645 is a wasteful number, since it uses less digits than its factorization.

5155616645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492915.

The product of its digits is 540000, while the sum is 44.

The square root of 5155616645 is about 71802.6228281391. The cubic root of 5155616645 is about 1727.5350692350.

The spelling of 5155616645 in words is "five billion, one hundred fifty-five million, six hundred sixteen thousand, six hundred forty-five".