561670120 has 64 divisors (see below), whose sum is σ = 1438611840. Its totient is φ = 195360000.

The previous prime is 561670091. The next prime is 561670129. The reversal of 561670120 is 21076165.

It is not an unprimeable number, because it can be changed into a prime (561670129) 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, 17631 + ... + 37870.

It is an arithmetic number, because the mean of its divisors is an integer number (22478310).

Almost surely, 2^561670120 is an apocalyptic number.

It is an amenable number.

561670120 is an abundant number, since it is smaller than the sum of its proper divisors (876941720).

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

561670120 is a wasteful number, since it uses less digits than its factorization.

561670120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55546 (or 55542 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 561670120 is about 23699.5805870062. The cubic root of 561670120 is about 825.0756563614.

The spelling of 561670120 in words is "five hundred sixty-one million, six hundred seventy thousand, one hundred twenty".