61433500506 has 64 divisors (see below), whose sum is σ = 143071460352. Its totient is φ = 17222971392.

The previous prime is 61433500493. The next prime is 61433500567. The reversal of 61433500506 is 60500533416.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 680725 + ... + 765671.

It is an arithmetic number, because the mean of its divisors is an integer number (2235491568).

Almost surely, 2^61433500506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61433500506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71535730176).

61433500506 is an abundant number, since it is smaller than the sum of its proper divisors (81637959846).

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

61433500506 is a wasteful number, since it uses less digits than its factorization.

61433500506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85283.

The product of its (nonzero) digits is 32400, while the sum is 33.

The spelling of 61433500506 in words is "sixty-one billion, four hundred thirty-three million, five hundred thousand, five hundred six".