1406600115561 has 24 divisors (see below), whose sum is σ = 2044064655360. Its totient is φ = 932053150656.

The previous prime is 1406600115533. The next prime is 1406600115563. The reversal of 1406600115561 is 1655110066041.

1406600115561 is a `hidden beast` number, since 1 + 40 + 6 + 60 + 0 + 1 + 1 + 556 + 1 = 666.

It is not a de Polignac number, because 1406600115561 - 2⁷ = 1406600115433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1406600115563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31831000 + ... + 31875158.

It is an arithmetic number, because the mean of its divisors is an integer number (85169360640).

Almost surely, 2^{1406600115561} is an apocalyptic number.

It is an amenable number.

1406600115561 is a deficient number, since it is larger than the sum of its proper divisors (637464539799).

1406600115561 is a wasteful number, since it uses less digits than its factorization.

1406600115561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65525 (or 65522 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 1406600115561 in words is "one trillion, four hundred six billion, six hundred million, one hundred fifteen thousand, five hundred sixty-one".