561140126415 has 128 divisors (see below), whose sum is σ = 1110743746560. Its totient is φ = 266467968000.

The previous prime is 561140126387. The next prime is 561140126447. The reversal of 561140126415 is 514621041165.

561140126415 is a `hidden beast` number, since 5 + 6 + 1 + 1 + 4 + 0 + 1 + 2 + 641 + 5 = 666.

561140126415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 561140126415 - 2¹⁷ = 561139995343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 561140126415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 47295774 + ... + 47307636.

It is an arithmetic number, because the mean of its divisors is an integer number (8677685520).

Almost surely, 2^561140126415 is an apocalyptic number.

561140126415 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

561140126415 is a deficient number, since it is larger than the sum of its proper divisors (549603620145).

561140126415 is a wasteful number, since it uses less digits than its factorization.

561140126415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12542 (or 12536 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 561140126415 in words is "five hundred sixty-one billion, one hundred forty million, one hundred twenty-six thousand, four hundred fifteen".