61045561476 has 27 divisors (see below), whose sum is σ = 154313361111. Its totient is φ = 20348026344.

The previous prime is 61045561387. The next prime is 61045561513. The reversal of 61045561476 is 67416554016.

The square root of 61045561476 is 247074.

It is a perfect power (a square), and thus also a powerful number.

61045561476 is a `hidden beast` number, since 6 + 1 + 0 + 45 + 561 + 47 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1461855 + ... + 1503033.

Almost surely, 2^61045561476 is an apocalyptic number.

61045561476 is the 247074-th square number.

It is an amenable number.

61045561476 is an abundant number, since it is smaller than the sum of its proper divisors (93267799635).

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

61045561476 is an frugal number, since it uses more digits than its factorization.

61045561476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82368 (or 41184 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

It can be divided in two parts, 61045 and 561476, that added together give a square (622521 = 789²).

The spelling of 61045561476 in words is "sixty-one billion, forty-five million, five hundred sixty-one thousand, four hundred seventy-six".