5661006615 has 24 divisors (see below), whose sum is σ = 10704449808. Its totient is φ = 2744730240.

The previous prime is 5661006601. The next prime is 5661006641. The reversal of 5661006615 is 5166001665.

It is not a de Polignac number, because 5661006615 - 2⁴ = 5661006599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5661006615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5717694 + ... + 5718683.

It is an arithmetic number, because the mean of its divisors is an integer number (446018742).

Almost surely, 2^5661006615 is an apocalyptic number.

5661006615 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5661006615 is a deficient number, since it is larger than the sum of its proper divisors (5043443193).

5661006615 is a wasteful number, since it uses less digits than its factorization.

5661006615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11436399 (or 11436396 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 5661006615 is about 75239.6611834477. The cubic root of 5661006615 is about 1782.2333007097.

It can be divided in two parts, 5 and 661006615, that added together give a triangular number (661006620 = T₃₆₃₅₉).

The spelling of 5661006615 in words is "five billion, six hundred sixty-one million, six thousand, six hundred fifteen".