61555152202260 has 48 divisors (see below), whose sum is σ = 172408439371392. Its totient is φ = 16409563139200.

The previous prime is 61555152202259. The next prime is 61555152202277. The reversal of 61555152202260 is 6220225155516.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160560531 + ... + 160943450.

It is an arithmetic number, because the mean of its divisors is an integer number (3591842486904).

Almost surely, 2^{61555152202260} is an apocalyptic number.

61555152202260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61555152202260 is an abundant number, since it is smaller than the sum of its proper divisors (110853287169132).

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

61555152202260 is a wasteful number, since it uses less digits than its factorization.

61555152202260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321507184 (or 321507182 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 42.

Adding to 61555152202260 its reverse (6220225155516), we get a palindrome (67775377357776).

The spelling of 61555152202260 in words is "sixty-one trillion, five hundred fifty-five billion, one hundred fifty-two million, two hundred two thousand, two hundred sixty".