1561676096 has 14 divisors (see below), whose sum is σ = 3098951130. Its totient is φ = 780838016.

The previous prime is 1561676087. The next prime is 1561676099. The reversal of 1561676096 is 6906761651.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1510410496 + 51265600 = 38864^2 + 7160^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1561676096.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1561676099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12200531 + ... + 12200658.

Almost surely, 2^1561676096 is an apocalyptic number.

1561676096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1561676096 is a deficient number, since it is larger than the sum of its proper divisors (1537275034).

1561676096 is an equidigital number, since it uses as much as digits as its factorization.

1561676096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24401201 (or 24401191 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 1561676096 is about 39518.0477250585. The cubic root of 1561676096 is about 1160.1932139513.

The spelling of 1561676096 in words is "one billion, five hundred sixty-one million, six hundred seventy-six thousand, ninety-six".