61516331312210 has 16 divisors (see below), whose sum is σ = 111804439046976. Its totient is φ = 24367634150448.

The previous prime is 61516331312203. The next prime is 61516331312273. The reversal of 61516331312210 is 1221313361516.

It is a super-2 number, since 2×61516331312210² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29862295724 + ... + 29862297783.

It is an arithmetic number, because the mean of its divisors is an integer number (6987777440436).

Almost surely, 2^{61516331312210} is an apocalyptic number.

61516331312210 is a deficient number, since it is larger than the sum of its proper divisors (50288107734766).

61516331312210 is a wasteful number, since it uses less digits than its factorization.

61516331312210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59724593617.

The product of its (nonzero) digits is 19440, while the sum is 35.

Adding to 61516331312210 its reverse (1221313361516), we get a palindrome (62737644673726).

The spelling of 61516331312210 in words is "sixty-one trillion, five hundred sixteen billion, three hundred thirty-one million, three hundred twelve thousand, two hundred ten".