561150421643442 has 16 divisors (see below), whose sum is σ = 1122301665025632. Its totient is φ = 187050003591360.

The previous prime is 561150421643389. The next prime is 561150421643479. The reversal of 561150421643442 is 244346124051165.

It is a super-2 number, since 2×561150421643442² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 561150421643391 and 561150421643400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25177159 + ... + 41906922.

It is an arithmetic number, because the mean of its divisors is an integer number (70143854064102).

Almost surely, 2^{561150421643442} is an apocalyptic number.

561150421643442 is an abundant number, since it is smaller than the sum of its proper divisors (561151243382190).

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

561150421643442 is a wasteful number, since it uses less digits than its factorization.

561150421643442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68478233.

The product of its (nonzero) digits is 2764800, while the sum is 48.

The spelling of 561150421643442 in words is "five hundred sixty-one trillion, one hundred fifty billion, four hundred twenty-one million, six hundred forty-three thousand, four hundred forty-two".