61502331360 has 48 divisors (see below), whose sum is σ = 193732345296. Its totient is φ = 16400621568.

The previous prime is 61502331343. The next prime is 61502331377. The reversal of 61502331360 is 6313320516.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61502331343) and next prime (61502331377).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 64064449 + ... + 64065408.

It is an arithmetic number, because the mean of its divisors is an integer number (4036090527).

Almost surely, 2^61502331360 is an apocalyptic number.

61502331360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61502331360 is an abundant number, since it is smaller than the sum of its proper divisors (132230013936).

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

61502331360 is a wasteful number, since it uses less digits than its factorization.

61502331360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128129875 (or 128129867 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

Adding to 61502331360 its reverse (6313320516), we get a palindrome (67815651876).

The spelling of 61502331360 in words is "sixty-one billion, five hundred two million, three hundred thirty-one thousand, three hundred sixty".