61582235506 has 32 divisors (see below), whose sum is σ = 104719910400. Its totient is φ = 26907110400.

The previous prime is 61582235489. The next prime is 61582235521. The reversal of 61582235506 is 60553228516.

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, 201391 + ... + 404626.

It is an arithmetic number, because the mean of its divisors is an integer number (3272497200).

Almost surely, 2^61582235506 is an apocalyptic number.

61582235506 is a deficient number, since it is larger than the sum of its proper divisors (43137674894).

61582235506 is a wasteful number, since it uses less digits than its factorization.

61582235506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606210.

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 61582235506 in words is "sixty-one billion, five hundred eighty-two million, two hundred thirty-five thousand, five hundred six".