61323062020 has 96 divisors (see below), whose sum is σ = 148185676800. Its totient is φ = 21081916800.

The previous prime is 61323061981. The next prime is 61323062051. The reversal of 61323062020 is 2026032316.

It is a happy 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, 2037441 + ... + 2067319.

It is an arithmetic number, because the mean of its divisors is an integer number (1543600800).

Almost surely, 2^61323062020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61323062020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74092838400).

61323062020 is an abundant number, since it is smaller than the sum of its proper divisors (86862614780).

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

61323062020 is a wasteful number, since it uses less digits than its factorization.

61323062020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30409 (or 30407 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 61323062020 its reverse (2026032316), we get a palindrome (63349094336).

The spelling of 61323062020 in words is "sixty-one billion, three hundred twenty-three million, sixty-two thousand, twenty".