61522025566 has 8 divisors (see below), whose sum is σ = 93196732104. Its totient is φ = 30456448200.

The previous prime is 61522025533. The next prime is 61522025567. The reversal of 61522025566 is 66552022516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61522025567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152282040 + ... + 152282443.

It is an arithmetic number, because the mean of its divisors is an integer number (11649591513).

Almost surely, 2^61522025566 is an apocalyptic number.

61522025566 is a deficient number, since it is larger than the sum of its proper divisors (31674706538).

61522025566 is a wasteful number, since it uses less digits than its factorization.

61522025566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304564586.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 61522025566 in words is "sixty-one billion, five hundred twenty-two million, twenty-five thousand, five hundred sixty-six".