5615256105861 has 16 divisors (see below), whose sum is σ = 7513682379264. Its totient is φ = 3730167721584.

The previous prime is 5615256105821. The next prime is 5615256105871. The reversal of 5615256105861 is 1685016525165.

It is not a de Polignac number, because 5615256105861 - 2¹⁰ = 5615256104837 is a prime.

It is a super-2 number, since 2×5615256105861² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5615256105821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38035390 + ... + 38182736.

It is an arithmetic number, because the mean of its divisors is an integer number (469605148704).

Almost surely, 2^{5615256105861} is an apocalyptic number.

It is an amenable number.

5615256105861 is a deficient number, since it is larger than the sum of its proper divisors (1898426273403).

5615256105861 is a wasteful number, since it uses less digits than its factorization.

5615256105861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192520.

The product of its (nonzero) digits is 2160000, while the sum is 51.

The spelling of 5615256105861 in words is "five trillion, six hundred fifteen billion, two hundred fifty-six million, one hundred five thousand, eight hundred sixty-one".