61320321150 has 96 divisors (see below), whose sum is σ = 167898503808. Its totient is φ = 14686396800.

The previous prime is 61320321131. The next prime is 61320321151. The reversal of 61320321150 is 5112302316.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61320321150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61320321151) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86929 + ... + 360828.

It is an arithmetic number, because the mean of its divisors is an integer number (1748942748).

Almost surely, 2^61320321150 is an apocalyptic number.

61320321150 is an abundant number, since it is smaller than the sum of its proper divisors (106578182658).

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

61320321150 is a wasteful number, since it uses less digits than its factorization.

61320321150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447866 (or 447861 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 61320321150 its reverse (5112302316), we get a palindrome (66432623466).

The spelling of 61320321150 in words is "sixty-one billion, three hundred twenty million, three hundred twenty-one thousand, one hundred fifty".