61716528341220 has 24 divisors (see below), whose sum is σ = 172806279355584. Its totient is φ = 16457740890976.

The previous prime is 61716528341201. The next prime is 61716528341257. The reversal of 61716528341220 is 2214382561716.

It is a super-2 number, since 2×61716528341220² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61716528341220.

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, 514304402784 + ... + 514304402903.

It is an arithmetic number, because the mean of its divisors is an integer number (7200261639816).

Almost surely, 2^{61716528341220} is an apocalyptic number.

61716528341220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61716528341220 is an abundant number, since it is smaller than the sum of its proper divisors (111089751014364).

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

61716528341220 is a wasteful number, since it uses less digits than its factorization.

61716528341220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028608805699 (or 1028608805697 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 61716528341220 in words is "sixty-one trillion, seven hundred sixteen billion, five hundred twenty-eight million, three hundred forty-one thousand, two hundred twenty".