561151521546 has 32 divisors (see below), whose sum is σ = 1399234963968. Its totient is φ = 145753641840.

The previous prime is 561151521529. The next prime is 561151521569. The reversal of 561151521546 is 645125151165.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 561151521498 and 561151521507.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607306380 + ... + 607307303.

It is an arithmetic number, because the mean of its divisors is an integer number (43726092624).

Almost surely, 2^561151521546 is an apocalyptic number.

561151521546 is an abundant number, since it is smaller than the sum of its proper divisors (838083442422).

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

561151521546 is a wasteful number, since it uses less digits than its factorization.

561151521546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214613706.

The product of its digits is 180000, while the sum is 42.

The spelling of 561151521546 in words is "five hundred sixty-one billion, one hundred fifty-one million, five hundred twenty-one thousand, five hundred forty-six".