61621334022 has 32 divisors (see below), whose sum is σ = 124033074048. Its totient is φ = 20408780736.

The previous prime is 61621333937. The next prime is 61621334029. The reversal of 61621334022 is 22043312616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61621334029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4994353 + ... + 5006675.

It is an arithmetic number, because the mean of its divisors is an integer number (3876033564).

Almost surely, 2^61621334022 is an apocalyptic number.

61621334022 is an abundant number, since it is smaller than the sum of its proper divisors (62411740026).

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

61621334022 is a wasteful number, since it uses less digits than its factorization.

61621334022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17604.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 61621334022 its reverse (22043312616), we get a palindrome (83664646638).

The spelling of 61621334022 in words is "sixty-one billion, six hundred twenty-one million, three hundred thirty-four thousand, twenty-two".