61532516066340 has 96 divisors (see below), whose sum is σ = 189814796841600. Its totient is φ = 14769280768000.

The previous prime is 61532516066323. The next prime is 61532516066369. The reversal of 61532516066340 is 4366061523516.

It is a self number, because there is not a number n which added to its sum of digits gives 61532516066340.

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, 461473365 + ... + 461606684.

It is an arithmetic number, because the mean of its divisors is an integer number (1977237467100).

Almost surely, 2^{61532516066340} is an apocalyptic number.

61532516066340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61532516066340 is an abundant number, since it is smaller than the sum of its proper divisors (128282280775260).

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

61532516066340 is a wasteful number, since it uses less digits than its factorization.

61532516066340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923080173 (or 923080171 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 48.

Adding to 61532516066340 its reverse (4366061523516), we get a palindrome (65898577589856).

The spelling of 61532516066340 in words is "sixty-one trillion, five hundred thirty-two billion, five hundred sixteen million, sixty-six thousand, three hundred forty".