61226560580 has 12 divisors (see below), whose sum is σ = 128575777260. Its totient is φ = 24490624224.

The previous prime is 61226560547. The next prime is 61226560607. The reversal of 61226560580 is 8506562216.

It can be written as a sum of positive squares in 2 ways, for example, as 13163890756 + 48062669824 = 114734^2 + 219232^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1530663995 + ... + 1530664034.

It is an arithmetic number, because the mean of its divisors is an integer number (10714648105).

Almost surely, 2^61226560580 is an apocalyptic number.

It is an amenable number.

61226560580 is an abundant number, since it is smaller than the sum of its proper divisors (67349216680).

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

61226560580 is a wasteful number, since it uses less digits than its factorization.

61226560580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061328038 (or 3061328036 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 61226560580 in words is "sixty-one billion, two hundred twenty-six million, five hundred sixty thousand, five hundred eighty".