61430215202460 has 144 divisors (see below), whose sum is σ = 200696598036480. Its totient is φ = 15119432939520.

The previous prime is 61430215202459. The next prime is 61430215202509. The reversal of 61430215202460 is 6420251203416.

61430215202460 is a `hidden beast` number, since 6 + 1 + 4 + 30 + 21 + 520 + 24 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 47 ways as a sum of consecutive naturals, for example, 17564436 + ... + 20769444.

Almost surely, 2^{61430215202460} is an apocalyptic number.

61430215202460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61430215202460 is an abundant number, since it is smaller than the sum of its proper divisors (139266382834020).

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

61430215202460 is a wasteful number, since it uses less digits than its factorization.

61430215202460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3213228 (or 3213223 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 61430215202460 its reverse (6420251203416), we get a palindrome (67850466405876).

The spelling of 61430215202460 in words is "sixty-one trillion, four hundred thirty billion, two hundred fifteen million, two hundred two thousand, four hundred sixty".