61403215302 has 48 divisors (see below), whose sum is σ = 156299100048. Its totient is φ = 17175723840.

The previous prime is 61403215261. The next prime is 61403215303. The reversal of 61403215302 is 20351230416.

61403215302 is a `hidden beast` number, since 6 + 140 + 3 + 215 + 302 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61403215303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11925013 + ... + 11930160.

It is an arithmetic number, because the mean of its divisors is an integer number (3256231251).

Almost surely, 2^61403215302 is an apocalyptic number.

61403215302 is an abundant number, since it is smaller than the sum of its proper divisors (94895884746).

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

61403215302 is a wasteful number, since it uses less digits than its factorization.

61403215302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23855205 (or 23855202 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 61403215302 its reverse (20351230416), we get a palindrome (81754445718).

The spelling of 61403215302 in words is "sixty-one billion, four hundred three million, two hundred fifteen thousand, three hundred two".