61344202536 has 48 divisors (see below), whose sum is σ = 166165702560. Its totient is φ = 20444971680.

The previous prime is 61344202529. The next prime is 61344202561. The reversal of 61344202536 is 63520244316.

61344202536 is a `hidden beast` number, since 61 + 3 + 44 + 20 + 2 + 536 = 666.

It is a super-2 number, since 2×61344202536² (a number of 22 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 61344202536.

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 11 ways as a sum of consecutive naturals, for example, 441771 + ... + 563781.

It is an arithmetic number, because the mean of its divisors is an integer number (3461785470).

Almost surely, 2^61344202536 is an apocalyptic number.

It is an amenable number.

61344202536 is an abundant number, since it is smaller than the sum of its proper divisors (104821500024).

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

61344202536 is a wasteful number, since it uses less digits than its factorization.

61344202536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129006 (or 128999 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 61344202536 in words is "sixty-one billion, three hundred forty-four million, two hundred two thousand, five hundred thirty-six".