1561170348 has 60 divisors (see below), whose sum is σ = 4111114392. Its totient is φ = 516576960.

The previous prime is 1561170337. The next prime is 1561170353. The reversal of 1561170348 is 8430711651.

1561170348 is a `hidden beast` number, since 1 + 5 + 611 + 7 + 0 + 34 + 8 = 666.

It is a super-2 number, since 2×1561170348² = 4874505710948882208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26803 + ... + 61973.

Almost surely, 2^1561170348 is an apocalyptic number.

1561170348 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1561170348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2055557196).

1561170348 is an abundant number, since it is smaller than the sum of its proper divisors (2549944044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1561170348 is a wasteful number, since it uses less digits than its factorization.

1561170348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35324 (or 35313 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 1561170348 is about 39511.6482571912. The cubic root of 1561170348 is about 1160.0679577705.

Adding to 1561170348 its reverse (8430711651), we get a palindrome (9991881999).

The spelling of 1561170348 in words is "one billion, five hundred sixty-one million, one hundred seventy thousand, three hundred forty-eight".